Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2 Unsteady Ducted Propfan Analysis
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Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2 Unsteady Ducted Propfan Analysis Computer Program Users Manual
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Author :
language : en
Publisher:
Release Date : 1991
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2 Unsteady Ducted Propfan Analysis Computer Program Users Manual written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2 Unsteady Ducted Propfan Analysis
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Author :
language : en
Publisher:
Release Date : 1991
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2 Unsteady Ducted Propfan Analysis written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 5 Unsteady Counterrotation Ducted Propfan Analysis
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Author :
language : en
Publisher:
Release Date : 1993
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 5 Unsteady Counterrotation Ducted Propfan Analysis written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 5 Unsteady Counterrotation Ducted Propfan Analysis Computer Program User S Manual
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Author :
language : en
Publisher:
Release Date : 1993
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 5 Unsteady Counterrotation Ducted Propfan Analysis Computer Program User S Manual written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher:
Release Date : 2018-11-13
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 2 written by National Aeronautics and Space Adm Nasa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-13 with categories.
The primary objective of this study was the development of a time-dependent three-dimensional Euler/Navier-Stokes aerodynamic analysis to predict unsteady compressible transonic flows about ducted and unducted propfan propulsion systems at angle of attack. The computer codes resulting from this study are referred to as Advanced Ducted Propfan Analysis Codes (ADPAC). This report is intended to serve as a computer program user's manual for the ADPAC developed under Task 2 of NASA Contract NAS3-25270, Unsteady Ducted Propfan Analysis. Aerodynamic calculations were based on a four-stage Runge-Kutta time-marching finite volume solution technique with added numerical dissipation. A time-accurate implicit residual smoothing operator was utilized for unsteady flow predictions. For unducted propfans, a single H-type grid was used to discretize each blade passage of the complete propeller. For ducted propfans, a coupled system of five grid blocks utilizing an embedded C-grid about the cowl leading edge was used to discretize each blade passage. Grid systems were generated by a combined algebraic/elliptic algorithm developed specifically for ducted propfans. Numerical calculations were compared with experimental data for both ducted and unducted propfan flows. The solution scheme demonstrated efficiency and accuracy comparable with other schemes of this class. Hall, Edward J. and Delaney, Robert A. and Bettner, James L. Unspecified Center COMPUTATIONAL FLUID DYNAMICS; COMPUTER PROGRAMS; CONTRAROTATING PROPELLERS; DUCTED FANS; EULER EQUATIONS OF MOTION; NAVIER-STOKES EQUATION; PROP-FAN TECHNOLOGY; TRANSONIC FLOW; UNSTEADY FLOW; AERODYNAMIC CHARACTERISTICS; ALGORITHMS; ANGLE OF ATTACK; FINITE VOLUME METHOD; GRID GENERATION (MATHEMATICS); RUNGE-KUTTA METHOD; TIME MARCHING; USER MANUALS (COMPUTER PROGRAMS)...
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 5
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-25
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 5 written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-25 with categories.
The primary objective of this study was the development of a time-marching three-dimensional Euler/Navier-Stokes aerodynamic analysis to predict steady and unsteady compressible transonic flows about ducted and unducted propfan propulsion systems employing multiple blade rows. The computer codes resulting from this study are referred to as ADPAC-AOACR (Advanced Ducted Propfan Analysis Codes-Angle of Attack Coupled Row). This report is intended to serve as a computer program user's manual for the ADPAC-AOACR codes developed under Task 5 of NASA Contract NAS3-25270, Unsteady Counterrotating Ducted Propfan Analysis. The ADPAC-AOACR program is based on a flexible multiple blocked grid discretization scheme permitting coupled 2-D/3-D mesh block solutions with application to a wide variety of geometries. For convenience, several standard mesh block structures are described for turbomachinery applications. Aerodynamic calculations are based on a four-stage Runge-Kutta time-marching finite volume solution technique with added numerical dissipation. Steady flow predictions are accelerated by a multigrid procedure. Numerical calculations are compared with experimental data for several test cases to demonstrate the utility of this approach for predicting the aerodynamics of modern turbomachinery configurations employing multiple blade rows. Hall, Edward J. and Delaney, Robert A. and Adamczyk, John J. and Miller, Christopher J. and Arnone, Andrea and Swanson, Charles Unspecified Center NASA-CR-187125, NAS 1.26:187125 NAS3-25270; RTOP 535-03-10...
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1991
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Aeronautics categories.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1995
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Government publications categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1994
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Government publications categories.
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 4 Advanced Fan Section Aerodynamic Analysis Computer Program User S Manual
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Author :
language : en
Publisher:
Release Date : 1992
Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 4 Advanced Fan Section Aerodynamic Analysis Computer Program User S Manual written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.