PUBLICATIONS
Journal
Papers || Book Chapters || Peer
Reviewed Conference Publications || Research
Reports for U. S. Government
Research Reports for Turbomachinery
Industry || Computer Codes
Developed || Invited
Seminars and Presentations
Journal Papers
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Schobeiri, M. T., Chakka, P., 2002, “Prediction
of turbine blade heat transfer and aerodynamics using unsteady boundary
layer
transition model,” International Journal of Heat and Mass
Transfer, 45 (2002) pp. 815-829.
Schobeiri, M.T., Gilarranz, J.L. Johansen, E. 2002,“Aerodynamic
and performance studies of a Three-Stage High Pressure Research
Turbine with 3-d - Dlades, Design point and off-design experimental
investigations,” accepted for publication in International
Journal of
Rotating Machinery.
Schobeiri, M.T, Attia, M. 2002, “Active Aerodynamic Control of
Multi-stage Axial Compressor Instability and Surge by
Dynamically Adjusting the Stator Blades,” accepted for publication
in AIAA-Journal of Propulsion and Power.
Schobeiri, M.T.Read, K. Lewalle, J.2002, “Effect of Unsteady Wake
Passing Frequency on Boundary Layer Transition, Experimental
Investigation and Wavelet Analysis,” under review for publication
in Journal of Fluids Engineering, according to the editor,
two favorable
reviews received.
Schobeiri, M. T., 2000, “Advances in unsteady boundary layer transition
research,” Part I: Theory, Modeling. In press for publication
in International Journal of Rotating Machinery.
Schobeiri, M. T., 2000, “Advances in unsteady boundary layer transition
research, Part II: Experimental Verifications.” In press for
publication in International Journal of Rotating Machinery.
Schobeiri, M.T. , 2000, “Active Control of Multi-Stage Axial Compressor
Instability and Surge by Dynamically Adjusting the Stator
Blades,” accepted for publication in AIAA-Journal of Propulsion
and Power.
Schobeiri, M. T., Pappu, K., 1999, “Optimization of Trailing Edge
Ejection Mixing Losses Downstream of Cooled Turbine Blades:
A theoretical and Experimental Study,” ASME Transactions, Journal
of Fluids Engineering, 1999, Vol. 121, pp. 118-125.
Chakka, P., Schobeiri, M.T. , 1999, “Modeling of Unsteady Boundary
Layer Transition on a Curved Plate under Periodic Unsteady
Flow Condition: Aerodynamic and Heat Transfer Investigations,”
ASME Transactions, Journal of Turbo machinery, January
1999, Vol. 121,
pp. 88-97. This paper exhibits a break through in unsteady boundary
layer transition research area.
Wright, L., Schobeiri, M. T., 1999, “The Effect of Periodic Unsteady
Flow on Boundary Layer and Heat Transfer on a Curved
Surface,” ASME Transactions, Journal of Turbo machinery,
November 1998, Vol. 120, pp. 22-33.
Schobeiri, M. T., 1998, “A New Shock Loss Model for Transonic
and Supersonic Axial Compressors With Curved Blades,” AIAA-
Journal of Propulsion and Power, Vol. 14, No. 4, pp. 470-478.
Schobeiri, M. T., 1997, "Advanced Compressor Loss Correlations,
Part I: Theoretical Aspects," International Journal of Rotating
Machinery, 1997, Vol. 3, pp. 163-177.
Schobeiri, M. T., 1997, "Advanced Compressor Loss Correlations,
Part II: Experimental Verifications," International Journal
of Rotating
Machinery, 1997, Vol. 3, pp. 179-187.
Greendyke, R.B., Paxson, D.E. , Schobeiri, M.T. 1997, “Dynamic
Simulation of a Wave Rotor Topped Turboshaft Engine,”under
review for publication in AIAA-Journal of Propulsion and Power.
Schobeiri, M. T., Wright., L., Chakka, P., 1998, "Periodic Unsteady
Flow Aerodynamics and Heat Transfer Studies on a Curved
Surface, Combined Part I and II," in press, International
Journal of Rotating Machinery.
Schobeiri, M. T., John, J., Pappu, K., 1996, “Development of Two-Dimensional
Wakes Within Curved Channels, Theoretical
Framework and Experimental Investigation,” an honor paper, ASME
Transactions, Journal of Turbo machinery, July, 1996, Vol.
118, pp.
506-518.
John, J., Schobeiri, M.T., 1996, “Development of Two-Dimensional
Wakes in a Curved Channel at Positive Pressure Gradient,”
ASME Transactions, Journal of Turbo machinery, June
1996, Vol 118, pp. 292-299.
Schobeiri, M. T., Pappu, K., 1996, “Zur Auslegung von gekühlten
Gasturbinenschaufeln mit optimaler Hinterkantenausblasung,”
Zeitschrift für Konstruktion (German most prestigious design journal
of Springer-Verlag), in press to appear in Vol. 12/96.
Schobeiri, M. T., Attia, M., 1996, “Zur Entwicklung von Berechnungsverfahren
zur Simulation dynamischen Verhaltens von
Strahltriebwerken und stationären Gasturbinenanlagen,” Journal
of Flight Sciences and Space Research (Zeitschrift für
Flugwissenschaften
und Wetraumforschung), 20, (1996), pp. 227-238.
Schobeiri, M. T., Pappu, K., John, J., 1995, “Theoretical and
Experimental Study of Development of Two-Dimensional Steady and
Unsteady Wakes within Curved Channels,” ASME Transactions,
Journal of Turbo machinery, December 1995, Vol. 117, pp.
593-598.
Schobeiri, M. T., Abouelkheir, M., Lippke, C., 1994, “GETRAN:
A Generic, Modularly Structured Computer Code for Simulation
of Dynamic Behavior of Aero-and Power Generation Gas Turbine Engines,”
an honor paper, ASME Transactions, Journal of Gas Turbine
and Power, Vol. 1, pp. 483-494.
Schobeiri, M. T., Pappu, K., John, J., 1994, “On the Development
of Two-Dimensional Wakes Within Curved Channels: Experimental
and Theoretical Investigations,” International Journal
of Rotating Machinery, Vol. 1, No. 1, pp. 19-35.
Schobeiri, M. T., Attia, M, Lippke, C., 1994, “Nonlinear Dynamic
Simulation of Single and Multi-spool Core Engines, Part I:
Theoretical Method,” AIAA, Journal of Propulsion and Power,
Volume 10, Number 6, pp. 855-862, 1994.
Schobeiri, M. T., Attia, M, Lippke, C., 1994, “Nonlinear Dynamic
Simulation of Single and Multi-spool Core Engines, Part II:
Modeling and Simulation Cases,” AIAA, Journal of Propulsion
and Power, Volume 10, Number 6, pp. 863-867, 1994.
Schobeiri, T., Radke, R.,1995, “Development of Periodic Unsteady
Turbulent Wakes in a Curved Channel at Zero Pressure Gradient,”
Journal of Flow Visualization, Vol. 2, No.1, pp. 39-59.
Schobeiri, M. T., Abouelkheir, M., 1992, “A Row-by-Row Off-Design
Performance Calculation Method for Turbines,” AIAA, Journal
of Propulsion and Power, Vol. 8, Number 4, July-August 1992,
pp. 823-826.
John, J., Schobeiri, M. T., 1993, “A Simple and Accurate Method
of Calibrating X-Probes,” ASME Transactions, Journal of
Fluid
Engineering, Vol.115, pp. 148-152.
Schobeiri, M. T., 1990, “The Influence of Curvature and Pressure
Gradient on the Temperature and Velocity Distribution,”
International Journal of Mechanical Sciences, Vol. 32,
No. 10, pp 851-861, 1990.
Schobeiri, M. T., 1990, “Optimum Design of a Low Pressure Double
Inflow Radial Steam Turbine for Open-Cycle Ocean Thermal
Energy Conversion,” ASME Transaction, Journal of Turbo
machinery, Vol. 112, pp. 71-77, January 1990.
Schobeiri, M. T., 1990, “Thermo-Fluid Dynamic Design Study of
Single- and Double-Inflow Radial and Single-Stage Axial Steam
Turbines for Open-Cycle Ocean Thermal Energy Conversion, Net Power Producing
Experiment Facility,” ASME Transaction, Journal of
Energy Resources, Vol. 112, pp. 41-50, March 1990.
Schobeiri, M. T., 1989, “Optimum Trailing Edge Ejection for Cooled
Gas Turbine Blades,” ASME Transaction, Journal of Turbo
machinery, Vol. 111, No. 4, pp.510-514, October 1989.
Schobeiri, M. T., 1989, “On the Stability Behavior of Vortex Flows
in Turbo machinery,” (in German) Zeitschrift für Flugwissenschaften
und Weltraumforschung, 13(1989) pp. 233-239, 1989.
Schobeiri, M. T., “Digital Computer Simulation of the Dynamic
Operating Behavior of Gas Turbines,” Journal Brown Boveri
Review Vol.
74, No. 3, March, 1987.
Schobeiri, M. T., 1987, “A Simple Method for Computation of Off-design
Performance of the Multistage Turbines,” VDI-Journal,
Forschung im Ingenieur Wesen Bd. 53, Nr. 1, 1987.
Schobeiri, M. T., 1985, “Digital Computer Simulation of the Dynamic
Response of Gas Turbines,” VDI- Annual Journal of
Turbomachinery, pp. 381-400, 1985.
Schobeiri, M. T., 1985, “The Influence of Trailing Edge Ejection
on the Mixing Losses Behind a Cooled Turbine Blade,” VDI-Journal
Forschung im Ingenieurwesen, Vol. 51, No. 1. pp. 25-28, 1985.
Schobeiri, M. T., “Velocity and Temperature Distribution in Hamel's
Spiral Flow,” Journal of Applied Mathematics and Mechanics,
ZAMM, 60, pp. 195-200, 1980.
Schobeiri, M. T., “Approximate Solution to Navier-Stokes Differential
Equations in Case of Decelerated and Accelerated Flows
Through Two-dimensional Channels Between Convex Walls as Well as Concave
Walls,” Journal of Applied Mathematics and Physics,
ZAMP
Vo. 27, Fasc. 1, 1976.
Schobeiri, M. T., “Theoretical and Experimental Investigations
of Laminar and Turbulent flows in Diffusers,” University Press
Darmstadt, W-Germany D-17 (1979).
Book
Chapters
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Schobeiri, M. T., 1996, "Advanced Compressor Loss
Correlations, Part II: Experimental Verifications," presented at
the 5th
International Symposium on Transport Phenomena and Dynamics of Rotating
Machinery, February 25-28, 1996 in Hawaii.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
Within Curved Channels, Part I: Theoretical Frame Work,”
Proceedings of Colloquium on Turbo machinery-1994, Turbo and Power Research
Center Seoul National University, pp. 285-299, 1994.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
Within Curved Channels, Part II: Experimental Investigations,
Comparison with Theory,” Proceedings of Colloquium on Turbo machinery-1994,
Turbo and Power Research Center Seoul National
University, pp. 300-336, 1994.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
Within Curved Channels, Part III: Development of Periodic
Unsteady Turbulent Wakes Within Curved Channels at Zero Streamwise Pressure
Gradient,” Proceedings of Colloquium on Turbo machinery-
1994, Turbo and Power Research Center Seoul National University, pp.
337-363, 1994.
Schobeiri, M. T., “Simulation of Unsteady Behavior of Gas Turbines,”
Dynamic and Design of Rotating Machinery, Volume 2,
Hemisphere Publishing Corporation, New York, Washington, Philadelphia,
London, pp. 408-421, 1990.
Schobeiri, M. T., “Innovative Turbine Design for Open Cycle Ocean
Thermal Energy Conversion Systems,” will be published in
Dynamic and Design of Rotating Machinery, Hemisphere Publishing Corporation,
New York, Washington, Philadelphia, London, pp. 535-
554, 1992.
Peer
Reviewed Conference Publications
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Schobeiri, M. T., 2001,” Active Aerodynamic Control
of Multi-Stage Axial Compressor Instability and Surge by Dynamically
Adjusting the Stator Blades,”ASME-paper: 2001-GT-0479, presented
at the ASME, IGTI-Conference, June 4-7, 2001, New Orleans,
Louisiana, USA.
Schobeiri, M. T., Gilarranz, J.L, Johansen, E.S., 2000, “Aerodynamic
and Performance Studies of a Three Stage High Pressure
Research Turbine with 3-D-Blades, Design Points and Off-Design Experimental
Investigations,”Presented at the ASME, IGTI-conference,
ASME-paper: 2000-GT-484, May 08-11, 2000, Munich Germany.
Chakka, P, Schobeiri, M. T.,” Scales of Turbulence During the
Boundary Transition under Unsteady Flow Conditions, ASME Paper
No. 99-GT-221, presented at the ASME, IGTI, International Gas Turbine
Congress, in Indianapolis, Indiana.
Schobeiri, M. T., Chakka, P., 1998,” Unsteady Wake Effects on
Boundary Layer Transition and Heat Transfer Characteristics of a
Turbine Blade, ASME Paper No. 98-GT-291, presented at the ASME, IGTI,
International Gas Turbine Congress, in Stockholm.
Schobeiri, M. T., Wright., L., Chakka, P., 1998, "Periodic Unsteady
Flow Aerodynamics and Heat Transfer Studies on a Curved
Surface, Combined Part I and II,"presented at the 5th International
Symposium on Transport Phenomena and Dynamics of Rotating
Machinery, February 22-26,1998 in Hawaii, U.S.A.
Chakka, P., Schobeiri, M.T., 1997, “Modeling of Unsteady Boundary
Layer Transition on a Curved Plate under Periodic Unsteady
Flow Condition”, ASME Paper No. 97-GT-399, presented at the IGTI,
International Gas Turbine Congress, in Orlando ASME
Schobeiri, M. T., 1996, "Advanced Compressor Loss Correlations,
Part I: Theoretical Aspects," presented at the 5th International
Symposium on Transport Phenomena and Dynamics of Rotating Machinery,
February 25-28,1996 in Hawaii.
Schobeiri, M. T., 1996, "Advanced Compressor Loss Correlations,
Part II: Experimental Verifications," presented at the 5th
International Symposium on Transport Phenomena and Dynamics of Rotating
Machinery, February 25-28, 1996 in Hawaii.
Schobeiri, M. T., Attia, S., 1996, “Advances in Nonlinear Dynamic
Engine Simulation Technology,” ASME 96-GT-392, presented at the
International Gas Turbine and Aero-Engine Congress and Exposition, Birmingham,
UK- June 10- 13, 1996.
Schobeiri, M. T., 1996, “Advanced Compressor Loss Correlations,
Part I: Theoretical Aspects,” presented at the 5th International
Symposium on Transport Phenomena and Dynamics of Rotating Machinery,
February 25-28,1996 in Hawaii.
Schobeiri, M. T., 1996, “Advanced Compressor Loss Correlations,
Part II: Experimental Verifications,” presented at the 5th
International Symposium on Transport Phenomena and Dynamics of Rotating
Machinery, February 25-28, 1996 in Hawaii.
Schobeiri, M. T., Pappu, K., Wright, L., 1995, “Experimental Sturdy
of the Unsteady Boundary Layer Behavior on a Turbine
Cascade,” ASME 95-GT-435, presented at the International Gas Turbine
and Aero-Engine Congress and Exposition, Houston, Texas, June
5-8, 1995.
Attia, M. S., Schobeiri, M. T., 1995, “A new Method for the Prediction
of Compressor Performance Maps Using One-Dimensional
Row-by-Row Analysis,” ASME 95-GT-434, presented at the International
Gas Turbine and Aero-Engine Congress and Exposition, Houston,
Texas.
Schobeiri, M. T., Read, K., Lewalle, J., 1995, “Effect of Unsteady
Wake Passing Frequency on Boundary Layer Transition,
Experimental Investigation and Wavelet Analysis,” ASME 95-GT-437,
presented at the International Gas Turbine and Aero-Engine Congress
and Exposition, Houston, Texas, June 5-8, 1995.
Schobeiri, M. T., John, J., Pappu, K., 1994, “Development of Two-Dimensional
Wakes Within Curved Channels, Theoretical
Framework and Experimental Investigation,” ASME 94-GT-367 paper,
presented at the International Gas Turbine and Aeroengine Congress
and Exposition in Hague, Netherlands, June 18-16, 1994. The paper was
recommended for the publication in ASME Transactions, Journal
of Turbo machinery.
Schobeiri, M. T., Pappu K., “Theoretical and Experimental Study
of Development of Two-dimensional Steady and Unsteady Wakes
Within Curved Channels,” presented at the ASME Winter Annual Meeting,
Mechanical Engineering Congress and Exposition, published
in Vol. 40, Unsteady Flows in Aero-propulsion Chicago Il. 1994. This
paper was also recommended for journal publication and is published
in ASME Transactions, Journal of Fluid Engineering, (see 4.1b).
Schobeiri, M. T., John, J., 1994, “Development of Periodic Unsteady
Turbulent Wakes in a Curved Channel at Zero Streamwise
Pressure Gradient,” ASME-paper 94-GT-158, presented at the International
Gas Turbine and Aeroengine Congress and Exposition in Hague,
Netherlands, June 18-16, 1994.
Schobeiri, M. T., Radke R., 1994, “Effect of Periodic Unsteady
Wake Flow and Pressure Gradient on Boundary Layer Transition
Along a the Concave Surface of a Curved Plate,” ASME-paper 94-GT-327,
presented at the International Gas Turbine and Aeroengine
Congress and Exposition in Hague, Netherlands, June 18-16, 1994.
John, J., Schobeiri, M.T., 1994, “Development of Two-Dimensional
Wakes in a Curved Channel at Positive Pressure Gradient,”
ASME-paper 94-GT-384, presented at the International Gas Turbine and
Aeroengine Congress and Exposition in Hague, Netherlands, June
18-16, 1994. This paper was also recommended for journal publication
and is being published in ASME Transactions, Journal of Fluid
Engineering, (See 4.1b).
Schobeiri, M. T., 1994, “On the Development of Two-Dimensional
Wakes Within Curved Channels: Experimental and Theoretical
Investigations,” presented at the 5th International Symposium
on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-5)
in Maui, Hawaii, May 8-11, 1994 Journal. The paper has been published
in the International Journal of Rotating Machinery, Vol. 1,
No. 4,
PP.1-17.
Schobeiri, M. T., Abouelkheir, M., Lippke, C., “GETRAN: A Generic,
Modularly Structured Computer Code for Simulation of
Dynamic Behavior of Aero-and Power Generation Gas Turbine Engines,”
ASME paper: 93-GT-388, presented at the ASME International
Gas Turbine Conference in Cincinnati, Ohio, 1993, this paper was also
recommended for journal publication and is published as an honor
paper in ASME Transactions, Journal of Gas Turbine and Power,
(See 4.1b).
Schobeiri, M. T., Lippke, C., Abouelkheir, M., “Nonlinear Dynamic
Simulation of Single- and Multi-Spool Core Engines,” AIAA
93-2580 paper, presented at the 29th AIAA/SAE/ASME/ASEE Joint Propulsion
Conference, June 28-30, 1993, Monterey, CA.
Schobeiri, M. T., “One-Dimensional Method for Accurate Prediction
of Off-Design Performance Behavior of Axial Turbines,” ASME
Paper 92-GT-54, presented at the ASME International Gas Turbine Conference
in Cologne, June 3-6, 1992.
Schobeiri, M. T., “Development of a Subsonic Flow Research Facility
for Simulating the Turbo machinery Flow and Investigating
its Effects on Boundary Layer Transition, Wake Development and Heat
Transfer,” presented at the Fourth International Symposium on
Transport Phenomena and Dynamics of Rotating Machinery, April 5-8, 1992.
Schobeiri, M. T., Abouelkheir, M., “A Row-by-Row Off-Design Performance
Calculation Method for Turbines,” presented at 27th
AIAA/SAE/ASME Joint Propulsion Conference in Sacramento, Calif., June
24-27, 1991, the paper was recommended for journal publication
and is published in AIAA, Journal of Propulsion and Power (See
4.1b).
Schobeiri, M. T., McFarland, E., Yeh, F., “Aerodynamic and Heat
Transfer Investigations on a High Reynolds Number Turbine
Cascade,” ASME paper 91-GT-157, to be presented at the ASME International
Gas Turbine Conference in Orlando, June 3-6, 1991.
Schobeiri, M. T., Dunn, M., “Simple Predictive method for Optimum
Thermo Fluid Dynamic Design of Radial Gas Turbines,” Fluid
Machinery Components, ASME FED-Vol. 101, Presented at the WAM in Dallas
Texas, Nov. 1990.
Schobeiri, M. T., “Innovative Turbine Design for Open Cycle Ocean
Thermal Energy Conversion Systems,” presented at the Third
International Symposium on Dynamics and Design of Rotating Machinery,
in Hawaii, 1990.
Schobeiri, M. T., “Optimum Design of a Low Pressure, Double Inflow,
Radial Steam Turbine for Open-Cycle Ocean Thermal Energy
Conversion,” ASME paper 89-GT-60, presented at the 34th ASME International
Gas Turbine Conference in Toronto, June 4-8, 1989. This
paper was recommended for journal publication and is published in ASME
Transactions, Journal of Turbo machinery, (See 4.1b).
Schobeiri, M. T., “Simulation of Unsteady Behavior of Gas Turbines,”
presented at the Second International Symposium on Dynamics
and Design of Rotating Machinery, in Hawaii, 1988.
Schobeiri, M. T., “General Computer Program for Prediction of
Transient Performance of Gas Turbines,” ASME-Paper, ASME
86-GT-180, June, 1986.
Schobeiri, M. T., Haselbacher, H., “Transient Analysis of GAS
Turbine Power Plant, Using the Huntorf Compressed Air Storage Plant
as an Example,” ASME-Paper, ASME-85-Gt-197, March, 1985.
Research
Reports for U.S. Government
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Schobeiri, M. T., Attia, M. S., “Final Report on
GETRAN ©: The Generic, Modularly Structured Computer Code for Simulation
of
the Transient Behavior of Single and Multi-spool Aero and Power Generation
Gas Turbine Engines,” Volume I: Technical Report, December,
1995.
Schobeiri, M. T., Attia, M. S., Lippke, C., “Final Report on GETRAN
©: The Generic, Modularly Structured Computer Code for
Simulation of the Transient Behavior of Single- and Multi-Spool Aero
and Power Generation Gas Turbine Engines,” Volume II: User
Manual, December, 1995.
Schobeiri, M. T., Attia, M.S., “Final Report on GETRAN ©:
The Generic, Modularly Structured Computer Code for Simulation of
the Transient Behavior of Single- and Multi-Spool Aero and Power Generation
Gas Turbine Engines,” Volume III: Code Organization,
December, 1995.
Schobeiri, M. T., John, J., “A Study of the Development of Steady
and Unsteady Turbulent Wakes Through Curved Channels at
Positive, Zero, and Negative Streamwise Pressure Gradients,” NASA
Contractor Report 198448, January, 1996.
Schobeiri, M. T., Pappu, K., “Experimental and Theoretical Investigations
of the Effect of Unsteady Flow on Turbine Blades
Aerodynamics and Heat Transfer,” NASA Contractor Report 198449,
January, 1996.
Schobeiri, M. T., Radke, R. E., “Effect of Periodic Unsteady Wake
Flow and Pressure Gradient on Boundary Layer Transition Along
the Concave Surface of a Curved Plate,” NASA Contractor Report
198449,January, 1996.
Schobeiri, M. T., “Heat Transfer and Boundary Layer Transition
Under Turbo machinery Flow Conditions,” Preliminary Report PR-1,
NASA Contract NAG 3-1256, 1991.
Schobeiri, M. T., “Completion of the Preliminary Measurements
on the Research Facility for Investigating the Effects of Periodic
Unsteady Inlet Flow, Pressure Gradient and Curvature on Boundary layer
Transition, Wake Development and Heat Transfer,” preliminary
Report PR-2, NASA Lewis Research Center, NAG 3-1256, 1991.
Schobeiri, M. T., “Turbine Component Development for the Integration
into GETRAN,” NASA Contract Report NAG-1144, 1991.
Schobeiri, M. T., “GETRAN, a Generic Modular Structured Computer
Code for the Simulation of Transient Behavior of Single- and
Multi-Spool High Pressure Core Engines, Turbofan Engines, and Power
Generation Gas Turbine Engines,” NASA Contract Report NAG-
1144, 1990.
Schobeiri, M. T., McFarland, E., Yeh, F., “Aerodynamic and Heat
Transfer Investigations on a High Reynolds Number Turbine
Cascade,” NASA Technical Memorandum 103260, 1990.
Schobeiri, M. T., “Advanced Code Architecture for the Simulation
of Multi-Spool Core Engines,” NASA Lewis Research Center, December
1990.
Schobeiri, M. T., “Aero-Thermodynamic Design Study of Single Inflow
Radial and Single-Stage Axial Steam Turbines for OC-OTEC
Net Power Producing Experiment Facility,” U.S. Department of Energy,
Solar Energy Research Institute, SERI/TR-253-3559, DE89009466.
Research
Reports for Turbomachinery Industry
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to top of page
Schobeiri, M.T., Gilarranz, J., Johansen, E., “ Final Report on:
Efficiency, Performance, and Interstage Flow Field Measurement of
Siemens-Westinghouse HP-Turbine Blade Series 9600 and 5600,” September,
1999.
Other Technical Papers and Reports
More than 50 other relevant conference and technical
papers in the field of Turbo machinery. The list will be submitted if
requested.
COMPUTER CODES DEVELOPED
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Schobeiri, M. T., Attia, M. S., “Final Report on
GETRAN ©: The Generic, Modularly Structured Computer Code for Simulation
of
the Transient Behavior of Single- and Multi-spool Aero and Power Generation
Gas Turbine Engines,” Volume I: Technical Report,
December, 1995.
Schobeiri, M. T., Attia, M. S., Lippke, C., “Final Report on GETRAN
©: The Generic, Modularly Structured Computer Code for
Simulation of the Transient Behavior of Single- and Multi-spool Aero
and Power Generation Gas Turbine Engines,” Volume II: User Manual,
December, 1995.
Schobeiri, M. T., Attia, M. S., “Final Report on GETRAN ©:
The Generic, Modularly Structured Computer Code for Simulation of
the Transient Behavior of Single- and Multi-spool Aero and Power Generation
Gas Turbine Engines,” Volume III: Code Organization,
December, 1995.
Schobeiri, M. T., “COTRAN, the Computer Code for Simulation of
Unsteady Behavior of Gas Turbines,” Brown Boveri Company
Gas Turbine Division, Switzerland, BBC-HZX-ST 85021 1985, Classified
(Size > 20,000 Statements).
Schobeiri, M. T., “User Guide for COTRAN, Vol. I.,” Brown
Boveri Company Gas Turbine Division, Switzerland, BBC-HT 520,
1986.
Schobeiri, M. T., “User Guide for COTRAN, Vol. II.,” Brown
Boveri Company Gas Turbine Division, Switzerland, BBC-HT 520,
1986.
Schobeiri, M. T., “Computer Code for Calculation of Transonic
Compressor Losses,” Brown Boveri Company Gas Turbine Division,
Switzerland, BBC-HTCT-TN-87/20C 1986, (Size > 10,000 Statements).
Schobeiri, M. T., “User Guide for Computer Code for Calculation
of Transonic Compressor Losses,” Brown Boveri Company Gas
Turbine Division, Switzerland, BBC-HTCT-TN-87/20C 1986.
Schobeiri, M. T., “Computer Code for calculation of Compressor
Performance Map, Part I,” Brown Boveri Company Gas Turbine
Division, Switzerland, BBC-HT582C 1986, (Size > 10,000 Statements).
Schobeiri, M. T., “User Guide for Computer Code for Calculation
of Compressor Performance Map, Part I,” Brown Boveri Company
Gas Turbine Division, Switzerland, BBC-HT582C 1986.
Schobeiri, M. T., “Computer Code for Optimum Design of Combined
Cycles,” Boveri Company Gas Turbine Division, Switzerland,
BBC-HTCT-TN-86-112C, 1986.
Schobeiri, M. T., “ User Guide for Computer Code for Optimum Design
of Combined Cycles,” Boveri Company Gas Turbine
Division, Switzerland, BBC-HTCT-TN-86-112C, 1986.
INVITED SEMINARS AND PRESENTATIONS
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Schobeiri, M. T., “lecture Series: On the State of Unsteady Boundary
Layer Transition Research in Turbomachinery” Presented at
Technical University Dresden, Berlin, April 01-07, 2002.
Schobeiri, M. T., “Lecture Series: Unsteady Aerdynamics in Turbomachinery”
presented at the Technical University Berlin,
November 12-23, 2001.
Schobeiri, M. T., “Advances in Unsteady Boundary Layer Transition
Research” presented at European the Technical University
Berlin, November 12-23, 2001.
Schobeiri, M. T., “Lecture Series: Unsteady Aerdynamics in Turbomachinery”
presented at the Technical University Berlin,
November 12-23, 2001.
Schobeiri, M. T., “Lecture sSeries: Advances in Gas turbine Engine
Simulation,” presented to Technical University Berlin, November
12-23, 2001.
Schobeiri, M.T., “Zum Stand der Forschung auf dem Gebiet der instationären
Grenzschichten,” Technische Universität Darmstadt,
Institut für Turbomaschinen und Fluidantriebstechnik, Germany,
May 08, 2000.
Schobeiri, M.T., “Zum Stand der dynamischen Simulation der Gasturbinenanlage,”
Technische Hochschule Aachen, Institut für
Dampf-und Gasturbinen, Germany, May 16, 2000.
Lecture Series on Gas Turbine Engine Design, Dynamic Simulations, I
received 1997 an invitation from Prof. Dr. Haselbacher,
Director of Turbomachinery Laboratory, Technical University Wiena, to
give a seminar, but because of my commitment to the Westinghouse
Project, I was not able to make the trip.
Schobeiri, M. T., “Optimization of Trailing Edge Ejection Mixing
Losses: Experimental Study, Theoretical Analysis,” presented to
General Electric, Power Generation, Schenectady, June 03, 1996
Schobeiri, M. T., “Advances in Dynamic Engine Simulation Code
G E T R A N: A Generic, Modularly Structured Computer Code
for Simulation of Dynamic Behavior of Aero- and Power Generation Gas
Turbine Engines,” presented to General Electric, Power Generation,
Schenectady, June 03, 1996
Schobeiri, M. T., “The Role of Dynamic Simulation in Engine Design
Process,” this invited seminar was presented to a joint special
session organized by the German Aerospace Industry MTU and the Technische
Hochschule Darmstadt, Germany, June 1995.
Schobeiri, M. T., “Unsteady Flow Research at Texas A&M University,
Part I: Boundary Layer Transition Research,” “Part II: Steady
and Unsteady Wake Development,” this invited seminar was presented
to a joint special session organized by the German Aerospace Industry
MTU and the Technische Hochschule Darmstadt, Germany, June 1995.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
Within Curved Channels, Part II: Experimental Investigations,
Comparison with Theory,” Proceedings of Colloquium on Turbo machinery-1994,
Turbo and Power Research Center Seoul National
University, pp. 300-336, 1994.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
Within Curved Channels, Part III: Development of Periodic
Unsteady Turbulent Wakes Within Curved Channels at Zero Streamwise Pressure
Gradient,” Proceedings of Colloquium on Turbo machinery-
1994, Turbo and Power Research Center Seoul National University, pp.
337-363, 1994.
Schobeiri, M. T., “Advances in Dynamic Engine Simulation,”
this invited seminar was presented to Turbo and Power Research Center,
Seoul National University and the CEO's of Korean Aerospace Industry,
1994.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
within Curved Channels, Part I: Theoretical Frame Work,”
Proceedings of Colloquium on Turbo machinery-1994, Turbo and Power Research
Center Seoul National University, pp. 285-299, 1994.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
within Curved Channels, Part II: Experimental Investigations,
Comparison with Theory,” Proceedings of Colloquium on Turbo machinery-1994,
Turbo and Power Research Center Seoul National
University, pp. 300-336, 1994.
Schobeiri, M. T., “On the Development of Two-Dimensional Wakes
within Curved Channels, Part III: Development of Periodic
Unsteady Turbulent Wakes within Curved Channels at Zero Streamwise Pressure
Gradient,” Proceedings of Colloquium on Turbo machinery-
1994, Turbo and Power Research Center Seoul National University, pp.
337-363, 1994.
Schobeiri, M. T., “Development of Two-Dimensional Steady and Unsteady
Wakes within Curved Channels; Experimental Approach
and Theoretical Frame Work,” presented at the Workshop on Inherent
Unsteadiness in Compressors and Turbines, October 5, 1993, at Purdue
University, invited by USAF, Aerospace Science Directorate, Mr. Daniel
Fant.
Schobeiri, T., “Development of Periodic Unsteady Turbulent Wakes
in a Curved Channel at Zero Pressure Gradient,” presented at
the Workshop on Inherent Unsteadiness in Compressors and Turbines, October
5, 1993, at Purdue University, invited by USAF, Aerospace
Science Directorate, Mr. Daniel. Fant.
Schobeiri, M. T., “Unsteady Boundary Layer Transition Phenomenon,
Progresses,” presented at the Boundary Layer Transition
Workshop by NASA Lewis Research Center, Internal Fluid Mechanics Division,
November, 17-18, 1993, invited by Mr. F. Simon, Deputy
Chief and Dr. R. Simoneau, Chief of Heat Transfer Branch, Internal Fluid
Mechanics Division, NASA Lewis Research Center.
Schobeiri, M. T., “Status Report on GETRAN, a Generic Modular
Structured Computer Code for the Simulation of Transient Behavior
of Single- and Multi-Spool High Pressure Core Engines, Turbofan Engines,
and Power Generation Gas Turbine Engines,” presented to the
scientists of NASA Lewis Research Center, invited by Carl Lorenzo, Chief
Systems Dynamics, August, 1992.
Schobeiri, M. T., “Status Report on Unsteady Boundary Layer Transition
Phenomenon, Progresses,” presented to the scientists of
NASA Lewis Research Center, Internal Fluid Mechanics Division, Heat
Transfer Branch, Chief Dr. R. Simoneau, August 1992.
Schobeiri, M. T., “Development of a Row-by-Row Turbine Module
and for the Integration into GETRAN,” presented to scientists
of the NASA Lewis Research Center, Advanced Control Technology Branch,
Chief Carl Lorenzo, August, 1991.
Schobeiri, M. T., “Design Concept for Development of GETRAN, a
Generic Modular Structured Computer Code for the Simulation
of Transient Behavior of Single- and Multi-Spool High Pressure Core
Engines, Turbofan Engines, and Power Generation Gas Turbine
Engines”, presented to the scientists of NASA Lewis Research Center,
Advanced Control Technology Branch, Chief Carl Lorenzo, 1990.
Schobeiri, M. T. “Advanced Computer Codes for Design, Integration
and Simulation of High Performance Jet Engines,” presented
to the Aero-Thermodynamic Design Group of General Electric Company,
Cincinnati, September 8, 1989.
Schobeiri, M. T. “A New Method for Calculation of Loss Correlations
for Transonic Compressors,” presented to the Fluid Dynamics
and Heat Transfer Division of NASA Lewis Research Center, Cleveland
Ohio, December 4, 1989.
Schobeiri, M. T. “Development of an Advanced Computer Code for
Simulation of Dynamic Behavior of High Pressure Core Engines,”
presented to the NASA LRC, Advanced Control Technology Branch, December
4, 1989.
Schobeiri, M. T. “Boundary Layer Transition under Turbo machinery
Operation Conditions,” presented to Fluid Dynamics and Heat
Transfer Division of NASA LRC, Cleveland Ohio, December 5, 1989.
Schobeiri, M. T. “Optimum Design of Cooled Axial, Radial, and
Mixed Flow Turbine Stages for High Efficiency and High
Performance Gas Turbines and Rocket Engines,” presented to the
Turbine Design Branch of NASA LRC, Cleveland Ohio, December 5, 1989.
Schobeiri, M. T., “A New Method for Calculation of Loss Correlations
for Transonic Compressors,” presented to the Fluid Dynamics
and Heat Transfer Division of NASA LRC, Cleveland Ohio, December 4,
1989.
Schobeiri, M. T., “Design and Integration of Power Generation
Unit into the OC-OTEC Net Power Producing Experimental Facility,”
presented to SERI, Thermal Energy Division, Golden Colorado, August,
1989.
Schobeiri, M. T., “Optimum Design of a Low Pressure Radial Turbine,”
presented to the Solar Energy Research Institute and
Department of Energy, Washington, May 11, 1988.
Schobeiri, M. T., “Digital Simulation of Jet Engines,” presented
to the USAF- AEDC (Arnold Engineering Development Center) in
Tulahoma, Tennessee, November 22, 1988.
Schobeiri, M. T., “Development of a New Loss Model for Transonic
Compressors,” Invited by Dr. Arthur Wennerstrom, Wright
Patterson AFB, Aero-Propulsion Lab, Dayton OH., Compressor Development
Group, August 10, 1988.