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Technical Papers
Technical Papers
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June 8-12, 2009
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Meanline Modeling of Radial Inflow Turbine with Variable Area Nozzle
Presented At: Proceedings of GT2009 ASME Turbo Expo 2009: Power for Land, Sea and Air
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June 8-12, 2009
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Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission
Presented At: ASME Turbo EXPO 2009: Power for Land, Sea and Air, Orlando, FL
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June 8-12, 2009
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The Analysis of Heat Transfer in Automotive Turbochargers
Presented At: ASME Turbo EXPO 2009: Power for Land, Sea and Air, Orlando, FL
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June 2-4, 2009
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Diffuser Dilemmas: From Choke to Surge
Presented At: Current Trends in Design and Computation of Turbomachinery, CDK Nove Energo, 2009
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June 2-4, 2009
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Optimization of Turbomachinery -- Validation Against Experimental Results
Presented At: Current Trends in Design and Computation of Turbomachinery, CDK Nove Energo, 2009
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April 30, 2009
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Numerical Investigation of the Influence of Variable Diffuser Vane Angles on the Performance of a Centrifugal Compressor
Presented At: Proc. IMechE Vol. 223 Part D: J. Automobile Engineering
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April 20-23, 2009
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Numerical Study of Ultra Low Solidity Airfoil Diffuser in an Automotive Turbocharger Compressor
Presented At: SAE World Congress 2009
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April 20-23, 2009
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Numerical Investigation of Advanced Compressor Technologies to Meet Future Diesel Emission Regulations
Presented At: SAE World Congress 2009
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April 20-23, 2009
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Turbomachinery Performance Modeling
Presented At: SAE World Congress 2009
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June 9-13, 2008
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A Meanline Model for Impeller Flow Recirculation
Presented At: Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air, Berlin, Germany
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November 11-15, 2007
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Cascade Blade Loading Analysis with Application to Turbomachinery Design
Presented At: ASME Int'l Mech. Engineering Congress & Exposition (IMECE), Seattle, WS
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2007
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Rapid Design of a Low Cost Fuel/Oxidizer Turbopump
Presented At: 54 th JANNAF Conference
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May 14-17, 2007
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CFD-Based Throughflow Solver in a Turbomachinery Design System
Presented At: Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air, Montreal, Canada
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May 14-17, 2007
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A New Slip Factor Model for Axial and Radial Impellers
Presented At: Proceeding s of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air, Montreal, Canada
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May 14-17, 2007
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Performance Prediction for High Pressure-Ratio Radial Inflow Turbines
Presented At: Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air, Montreal, Canada
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August 7-11, 2006
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Stability Enhancement of Compressors and Turbopumps by Passive Flow Control
Presented At: Thermal and Fluids Analysis Workshop, College Park, MD
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2006
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The Turbocharging Challenge
Presented At: Concepts NREC
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February 26 - March 2, 2006
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Effective Two-Zone Modeling of Diffusers and Return Channel Systems for Radial and Mixed-Flow Pumps and Compressors
Presented At: The 11th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11), Honolulu, HI
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February, 2006
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Application of the Concepts NREC Agile Engineering Design System To Steam Turbines
Presented At: Turbomachinery Society of Japan
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November 5-11, 2005
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Multi-Variable, High Order, Performance Models
Presented At: ASME Int'l Mech. Engineering Congress & Exposition (IMECE), Orlando, FL
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November 5-11, 2005
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Turbomachinery Performance Models (2005B)
Presented At: ASME International Mechanical Engineering Congress & Exposition (IMECE), Orlando, FL
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September 21-23, 2005
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Overview of Performance Modeling and New Model Development of Radial Turbomachinery Using Optimization Search Methodology with an Extensive Database
Presented At: SYMKOM'05, Lodz, Poland
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June 6-9, 2005
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Vaneless Diffuser Advanced Model (2005D)
Presented At: ASME Turbo Expo 2005: Power for Land, Sea, and Air, Reno-Tahoe, NV, also Journal of Turbomachinery, 2006
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June 6-9, 2005
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Turbomachinery Modeling: Explicit and Implicit Knowledge Capturing
Presented At: ASME Turbo Expo 2005: Power for Land, Sea, and Air, Reno-Tahoe, NV
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March 7-11, 2005
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Radial Turbines - An Integrated Design Approach
Presented At: 6th European Conference on Turbomachinery – Fluid Dynamics and Thermodynamics, Lille, France
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December 1-5, 2004
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Application of a New Turbine Design System to Rocket Turbopumps
Presented At: 2003 JANNAF 39th Combustion Subcommittee 27th Airbreathing Propulsion Subcommittee 3rd Modeling and Simulation Subcommittee Joint Meeting, Colorado Springs, Colorado
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March 7-11, 2004
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An Evaluation of Neural Networks for Meanline Model Development
Presented At: 10th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-10) Honolulu, HI
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March 7-11, 2004
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Opportunities in University Collaboration for Turbomachinery Development
Presented At: 10th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-10) Honolulu, HI
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March 7-11, 2004
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Optimization in Component Design and Redesign
Presented At: 10th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-10) Honolulu, HI
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March 7-11, 2004
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Optimization in Turbomachinery Data Reduction
Presented At: 10th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-10) Honolulu, HI
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November 18, 2003
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Hydrodynamic Analysis of Two 3D Axial Flow Pumps
Presented At: IMechE for Advances of CFD in Fluid Machinery Design, Westminster, London, U.K.
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November 15-21, 2003
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Application and Validation of CFD in a Turbomachinery Design System
Presented At: ASME Int'l Mech. Engineering Congress & R&D Expo, Washington, DC
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November, 2003
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The Reduced Order Through-Flow Modeling of Axial Turbomachinery
Presented At: Int'l Gas Turbine Conference, Tokyo, Japan
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October 16-18, 2003
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Multi-Disciplinary Optimization Applied to a Turbocharger Compressor Impeller
Presented At: IXth Int'l Conference Rotary Fluid-Flow Machines, Rzeszow, Poland
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September 19-20, 2003
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Systematic Optimization for Turbomachinery Design and Redesign
Presented At: 2003 JSME Fluid Engineering Conference, Osaka, Japan
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September 19-20, 2003
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Turbomachinery Design with an Agile Engineering System
Presented At: 2003 JSME Fluid Engineering Conference, Osaka, Japan
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July 20-23, 2003
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Multi-Disciplinary Optimization of a LH2 Turbopump Design in an Agile Engineering Environment
Presented At: AIAA, Huntsville, AL
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July 20-23, 2003
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Preliminary Design of a Singular Fuel/Oxidizer Turbopump
Presented At: Joint Propulsion Conference and Exhibit Von Braun Center, 39th AIAA/ASME/ SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville, AL
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2003
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Impeller Force Coefficient Measurements Using Magnetic Bearings
Presented At: JANNAF
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July 15-18, 2002
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Expedited Agile System Design and Redesign Approach for Industrial Pumps
Presented At: Proceeding of NRC/ASME: Symposium on Valve and Pump Testing, Washington, DC; 2002 Int'l iSIGHT Users' Conference, Arlington, VA
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July 14-18, 2002
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Developments in Agile Engineering for Turbomachinery
Presented At: Proceedings of ASME FEDSM'02 2002 ASME Fluids Engineering Division Summer Meeting, Montreal, Canada
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June 11-13, 2002
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Development and Seeded-Fault Testing of an Engine Health Monitoring System
Presented At: AHS Int'l -- The Vertical Flight Society Forum 58, Montreal, Canada
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May 14-15, 2002
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Radial and Mixed Turbine Options for High Boost Turbochargers
Presented At: 7th International Conference on Turbochargers and Turbocharging
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April 8-12, 2002
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Thermo-Mechanical Turbopump Design and Analysis Tools
Presented At: 38th Combustion Subcommittee (CS), 26th Air-breathing Propulsion Subcommittee (APS), 20th Propulsion Systems Hazards Subcommittee (PSHS), 2nd Modeling & Simulation
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April 8-12, 2002
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Overview of Industrial Pump Inducer Design
Presented At: 38th Combustion Subcommittee (CS), 26th Air-breathing Propulsion Sub- committee (APS), 20th Propulsion Systems Hazards Subcommittee (PSHS), 2nd Modeling & Simulation Sub-committee (MSS), Destin, FL, (JANNAF)
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February 10-14, 2002
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Overview of Commercial Pump Inducer Design
Presented At: 9th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC), Honolulu, HI
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February 10-14, 2002
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Integrated Thermomechanical Design and Analysis Tools for Turbomachinery
Presented At: 9th Int'l Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI
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February, 2002
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Measured Performance of Tilting Pad Journal Bearings Over a Range of Preloads: Part 1- Static Operating Conditions
Presented At: 2002 ASME STLE Lubrication Meeting and STLE Tribology Transactions (TRI112)
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February, 2002
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Measured Performance of Tilting Pad Journal Bearings Over a Range of Preloads: Part 2- Dynamic Operating Conditions
Presented At: 2002 ASME STLE Lubrication Meeting and STLE Tribology Transactions (TRI112)
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December 28, 2001
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Hydraulic Development of a Centrifugal Pump Impeller Using the Agile Turbomachinery Design System
Presented At: Task Quarterly, Scientific Bulletin of the Academic Computer Center in Gdansk, Poland
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November 11-16, 2001
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The Role of CFD in Turbomachinery Designs
Presented At: 2001 ASME Int'l Mech. Engineering Congress and Exposition, New York, NY
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October 10-11, 2001
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Progress and Potential in Agile Engineering for Turbomachinery
Presented At: 2001 iSIGHT Industrial Manufacturing Conference, Vienna, VA
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July 11-13, 2001
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Design Study for a Low-Cost LH2 Turbopump - Two
Presented At: 50th Joint Army-Navy-NASA-Air Force (JANNAF) Propulsion Meeting, Salt Lake City, UT
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June 22, 2001
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Overview of Industrial and Rocket Turbopump Inducer Design
Presented At: The Fourth International Symposium on Cavitation, Pasadena, CA
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June 4-7, 2001
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A Numerical Investigation on the Volute/Impeller Steady-State Interaction Due to Circumferential Distortion
Presented At: Proceedings of ASME Turbo Expo 2001, New Orleans, LA
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June 4-7, 2001
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A Multiple Harmonic Open Loop Controller for Hydro/Aerodynamic Force in Rotating Machinery using Magnetic Bearings
Presented At: ASME Turbo Expo 2001, New Orleans, LA
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2001
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A Comparative Study of Incompressible and Compressible Design Approaches of Radial Inflow Turbine Volutes
Presented At: IMechE, Journal of Power and Energy
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2001
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Design Point Performance Trends for Water Vapor Compressors
Presented At: ASME, IMechE
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January 12-15, 2001
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Direct Calculation of Turbomachinery Flows Using the Space-Time Conservation Element and Solution Element Method
Presented At: 39th Aerospace Sciences Meeting & Exhibit, Reno, NV
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November 13-17, 2000
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Design Study for a Low-Cost LH2 Turbopump - One
Presented At: 1st Joint Army-Navy-NASA, Air Force (JANNAF) Modeling and Simulation Subcommittee Meeting
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November 5-11, 2000
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Decisive Factors in Advanced Centrifugal Compressor Design and Development
Presented At: Int'l Mech. Engineering Congress & Exposition of ASME, Orlando, FL
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September 18-21, 2000
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Sidestream Optimization Through the Use of Computational Fluid Dynamics and Model Testing
Presented At: 2000 Proceedings of the 29th Turbomachinery Symposium, Texas A&M
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August 21-25, 2000
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Correlation of Annual Diffuser Performance with Geometry, Swirl, and Blockage
Presented At: Thermal & Fluids Analysis Workshop (TFAWS), Cleveland, OH
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August 21-25, 2000
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Design Study for a Low-Cost LOX Turbopump
Presented At: Thermal & Fluids Analysis Workshop (TFAWS), Cleveland, OH
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July 17-19, 2000
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Application of Design for Manufacture and Assembly Methodologies to Complex Aerospace Products
Presented At: 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Huntsville, AL
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May 8-11, 2000
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Characteristics of a Radial Inflow Turbine with Internal Component Measurements Part I: Data Review
Presented At: ASME Turbo Expo 2000: Land, Sea, and Air, Munich, Germany
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March 26-30, 2000
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Precision Turbomachinery Products in the Agile Engineering Era
Presented At: ISROMAC-8 Pacific Center of Thermal-Fluids Engineering, Maui, Hawaii
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March, 2000
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The Performance of Annular Diffusers Subject to Inlet Flow Field Variations and Exit Distortion
Presented At: 8th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery ISROMAC
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February 23-24, 2000
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Agile Engineering and the Restructuring of Modern Design
Presented At: 40th Israel Annual Conference on Aerospace Science, Tel-Aviv and Haifa
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January 10-13, 2000
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Advanced Turbulence Model for Transitional and Rotational Flows in Turbomachinery
Presented At: AIAA, Reno, NV
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December 13-14, 1999
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The Validation of Rapid CFD Modeling for Turbomachinery
Presented At: Institution of Mechanical Engineers for CFD Technical Developments and Future Trends, London, U.K.
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September 13-17, 1999
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The Off-Design Performance of a Carefully Instrumented Radial Inflow Turbine
Presented At: 10th Thermal & Fluids Analysis Workshop, NASA, Marshall Space Flight Center, Huntsville, AL
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June 20-24, 1999
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Experimental and Numerical Results of the Coupled Seal Cavity and Main Flow for a Liquid Hydrogen Rocket Turbopump
Presented At: 35th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Los Angeles, CA
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March 24, 1999
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Restructuring of Engineering Design and the Role of DFMA
Presented At: Committee for the Advancement of Competitive Manufacturing, University of Rhode Island, Kingston, RI
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November 3-5, 1998
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A Meanline Prediction Method for Radial Turbine Efficiency
Presented At: 6th Annual Int'l Conference on Turbocharging and Air Management Systems, IMechE
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October 15, 1998
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CFD Analysis and Test of a Fluid Machine Operating as a Pump and Turbine
Presented At: CFD in Fluid Machinery Design, IMechE., London, U.K.
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June 21-25, 1998
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Numerical and Experimental Flow Analysis of a Cryogenic Power Recovery Turbine
Presented At: Proceedings of FEDSM'98, 1998 ASME Fluids Engineering Division Summer Meeting, Washington DC
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October, 1997
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CFD Analysis and Test Verification for Cryogenic Power Recovery Turbine
Presented At: Hans Kimmel, Ebara International Corp. Cryodynamics Div.
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December, 1996
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Agile Design in the Age of Concurrent Engineering
Presented At: 1996 JANNAF Propulsion & Joint Subcommittee Meetings, Albuquerque, NM
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October, 1995
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Advanced Pump Design in the Age of Concurrent Engineering: Total Agile Development
Presented At: Second International Conference on Pumps and Fans, Beijing, China
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1995
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Agile Update: 1995 Aggressive Design for the Year 2000
Presented At: Concepts ETI, Inc. 14th Anniversary Forum
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1995
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Turbomachinery Design in the Age of Concurrent Engineering Total Agile Development
Presented At: Yokohama International Gas Turbine Congress
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June 13-16, 1994
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A Rapid Aerodynamic Loading Procedure for Centrifugal Impeller Design
Presented At: Int'l Gas Turbine and Aeroengine Congress and Exposition, The Hague, The Netherlands
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November 10-12, 1993
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Agile Engineering Accelerates Design
Presented At: RO-CON Conference, Somerset, NJ, also Mechanical Engineering, November, 1993
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June 4-8, 1989
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Laser Transit Anemometry Investigation of a High Speed Centrifugal Compressor
Presented At: ASME Gas Turbine and Aeroengine Congress and Exposition
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January, 1987
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A Critical Evaluation of Three Centrifugal Compressors with Pedigree Data Sets, Part 5: Studies in Component Performance
Presented At: ASME Journal of Turbomachinery
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June 8-12, 1986
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Optimization of Industrial Centrifugal Compressors Part 6A: Studies in Component Performance - Eight Design Cases from 1972 to 1982
Presented At: 31st International Gas Turbine Conference and Exhibit, Düsseldorf, W. Germany
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May 6-8, 1986
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Future Performance, Design Possibilities, and Goals for Radial Compressors
Presented At: IMechE, 3rd Int'l Conference on Turbocharging and Turbochargers, London, U.K.
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June 8-12, 1986
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Optimization of Industrial Centrifugal Compressors - Part 6B: Laboratory Development of Eight Stages from 1972 to 1982
Presented At: 31st International Gas Turbine Conference and Exhibit, Düsseldorf, W. Germany
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March 18-21, 1985
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Assessment of Single- and Two-Zone Modeling of Centrifugal Compressors - Studies in Component Performance
Presented At: Presented at the Gas Turbine Conference and Exhibit, Houston, TX
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December, 1984
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A Critical Evaluation of Stall Concepts for Centrifugal Compressors and Pumps - Studies in Component Performance: Part 7
Presented At: Stability, Stall and Surge in Compressors and Pumps, ASME Winter Annual Meeting, New Orleans, LA
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June 1984 & 1986
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A New Diffuser Mapping Technique - Studies in Component Performance: Part 1
Presented At: ASME Paper No. 84-GT-237, Amsterdam, The Netherlands; also Journal of Fluids Engineering, Vol. 108, No. 2, pp. 148-156
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April, 1982
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Advanced Diffusion Levels in Turbocharger Compressors and Component Matching
Presented At: I.Mech. Engr. Conference, U.K.
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March, 1980
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Finding Relevance in Numerical Turbomachinery Analysis
Presented At: Performance Prediction of Centrifugal Pumps and Compressors, 25th Annual International Gas Turbine Conference, New Orleans, LA
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March, 1977
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A Centrifugal Compressor Flow Analysis Employing a Jet-Wake Passage Flow Model
Presented At: Journal of Fluids Engineering: Transaction of the ASME
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