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Investigation Of Advanced Counterrotation Blade Configuration Concepts For High Speed Turboprop Systems Task 8 Cooling Flow Heat Transfer Analysis
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724265586 Total Pages :366 pages Book Rating :4.2/5 (655 download)
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8 by : National Aeronautics and Space Administration (NASA)
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-25 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this task was to validate the ADPAC code for heat transfer calculations. To accomplish this goal, the ADPAC code was modified to allow for a Cartesian coordinate system capability and to add boundary conditions to handle spanwise periodicity and transpiration boundaries. This user's manual describes how to use the ADPAC code as developed in Task 5, NAS3-25270, including the modifications made to date in Tasks 7 and 8, NAS3-25270. Hall, Edward J. and Topp, David A. and Heidegger, Nathan J. and Delaney, Robert A. Unspecified Center NASA-CR-195360, E-9025, NAS 1.26:195360 NAS3-25270; RTOP 538-03-11...
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724265432 Total Pages :202 pages Book Rating :4.2/5 (654 download)
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8 by : National Aeronautics and Space Administration (NASA)
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-25 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this task was to validate the ADPAC code for heat transfer calculations. To accomplish this goal, the ADPAC code was modified to allow for a Cartesian coordinate system capability and to add boundary conditions to handle spanwise periodicity and transpiration boundaries. The primary validation case was the film cooled C3X vane. The cooling hole modeling included both a porous region and grid in each discrete hold. Predictions for these models as well as smooth wall compared well with the experimental data. Hall, Edward J. and Topp, David A. and Heidegger, Nathan J. and Delaney, Robert A. Unspecified Center NASA-CR-195359, E-9024, NAS 1.26:195359 NAS3-25270; RTOP 538-03-11...
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8: Cooling Flow/heat Transfer Analysis User's Manual by :
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8: Cooling Flow/heat Transfer Analysis User's Manual written by and published by . This book was released on 1994 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8: Cooling Flow/heat Transfer Analysis by :
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 8: Cooling Flow/heat Transfer Analysis written by and published by . This book was released on 1994 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems by : Edward J. Hall
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems written by Edward J. Hall and published by . This book was released on 1994 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 4: Advanced Fan Section Aerodynamic Analysis by :
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 4: Advanced Fan Section Aerodynamic Analysis written by and published by . This book was released on 1992 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 4: Advanced Fan Section Aerodynamic Analysis Computer Program User's Manual by :
Download or read book 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 published by . This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 1638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 2: Unsteady Ducted Propfan Analysis Computer Program Users Manual by :
Download or read book 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 published by . This book was released on 1991 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723185854 Total Pages :156 pages Book Rating :4.1/5 (858 download)
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems, Task 1 by : National Aeronautics and Space Administration (NASA)
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems, Task 1 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time-dependent three-dimensional Euler equations of gas dynamics were solved numerically to study the steady compressible transonic flow about ducted propfan propulsion systems. Aerodynamic calculations were based on a four-stage Runge-Kutta time-marching finite volume solution technique with added numerical dissipation. An implicit residual smoothing operator was used to aid convergence. Two calculation grids were employed in this study. The first grid utilized an H-type mesh network with a branch cut opening to represent the axisymmetric cowl. The second grid utilized a multiple-block mesh system with a C-type grid about the cowl. The individual blocks were numerically coupled in the Euler solver. Grid systems were generated by a combined algebraic/elliptic algortihm developed specifically for ducted propfans. Numerical calculations were initially performed for unducted propfans to verify the accuracy of the three-dimensional Euler formulation. The Euler analyses were then applied for the calculation of ducted propfan flows, and predicted results were compared with experimental data for two cases. The three-dimensional Euler analyses displayed exceptional accuracy, although certain parameters were observed to be very sensitive to geometric deflections. Both solution schemes were found to be very robust and demonstrated nearly equal efficiency and accuracy, although it was observed that the multi-block C-grid formulation provided somewhat better resolution of the cowl leading edge region. Hall, Edward J. and Delaney, Robert A. and Bettner, James L. Unspecified Center COMPRESSIBLE FLOW; COMPUTATIONAL FLUID DYNAMICS; CONTRAROTATING PROPELLERS; EULER EQUATIONS OF MOTION; FLOW DISTRIBUTION; FLOW EQUATIONS; PROP-FAN TECHNOLOGY; PROPELLER FANS; THREE DIMENSIONAL FLOW; TRANSONIC FLOW; CONVERGENCE; GRID GENERATION (MATHEMATICS); LEADING EDGES; RUNGE-KUTTA METHOD; TIME MARCHING...
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722604516 Total Pages :78 pages Book Rating :4.6/5 (45 download)
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 4 by : National Aeronautics and Space Administration (NASA)
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 4 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computer program user's manual for the ADPACAPES (Advanced Ducted Propfan Analysis Code-Average Passage Engine Simulation) program is included. The objective of the computer program is development of a three-dimensional Euler/Navier-Stokes flow analysis for fan section/engine geometries containing multiple blade rows and multiple spanwise flow splitters. An existing procedure developed by Dr. J. J. Adamczyk and associates at the NASA Lewis Research Center was modified to accept multiple spanwise splitter geometries and simulate engine core conditions. The numerical solution is based upon a finite volume technique with a four stage Runge-Kutta time marching procedure. Multiple blade row solutions are based upon the average-passage system of equations. The numerical solutions are performed on an H-type grid system, with meshes meeting the requirement of maintaining a common axisymmetric mesh for each blade row grid. The analysis was run on several geometry configurations ranging from one to five blade rows and from one to four radial flow splitters. The efficiency of the solution procedure was shown to be the same as the original analysis. Crook, Andrew J. and Delaney, Robert A. Unspecified Center...
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723186257 Total Pages :112 pages Book Rating :4.1/5 (862 download)
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 3 by : National Aeronautics and Space Administration (NASA)
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 3 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A procedure is studied for generating three-dimensional grids for advanced turbofan engine fan section geometries. The procedure constructs a discrete mesh about engine sections containing the fan stage, an arbitrary number of axisymmetric radial flow splitters, a booster stage, and a bifurcated core/bypass flow duct with guide vanes. The mesh is an h-type grid system, the points being distributed with a transfinite interpolation scheme with axial and radial spacing being user specified. Elliptic smoothing of the grid in the meridional plane is a post-process option. The grid generation scheme is consistent with aerodynamic analyses utilizing the average-passage equation system developed by Dr. John Adamczyk of NASA Lewis. This flow solution scheme requires a series of blade specific grids each having a common axisymmetric mesh, but varying in the circumferential direction according to the geometry of the specific blade row. Crook, Andrew J. and Delaney, Robert A. Unspecified Center COMPUTATIONAL GRIDS; COMPUTERIZED SIMULATION; COUNTER ROTATION; GRID GENERATION (MATHEMATICS); PROPULSION SYSTEM CONFIGURATIONS; TURBOFAN ENGINES; USER MANUALS (COMPUTER PROGRAMS); ALGORITHMS; APPLICATIONS PROGRAMS (COMPUTERS); COMPUTATIONAL FLUID DYNAMICS; COMPUTER AIDED DESIGN; FLOW DISTRIBUTION; PROPELLER BLADES; TURBOPROP ENGINES...
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 2 by : National Aeronautics and Space Adm Nasa
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 2 written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-13 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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)...
Book Synopsis Follow-on Low Noise Fan Aerodynamic Study by :
Download or read book Follow-on Low Noise Fan Aerodynamic Study written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 2: Unsteady Ducted Propfan Analysis by :
Download or read book Investigation of Advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems. Task 2: Unsteady Ducted Propfan Analysis written by and published by . This book was released on 1991 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: