Computation Of Navier Stokes Equations For Three Dimensional Flow Separation
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Computation Of Navier Stokes Equations For Three Dimensional Flow Separation
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-30
Computation Of Navier Stokes Equations For Three Dimensional Flow Separation 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 2018-06-30 with categories.
Supersonic flows over a sharp and a flat-faced blunt fin mounted on a flat plate are simulated numerically. Several basic issues involved in the resultant three-dimensional steady flow separation are studied. Using the same number of grid points, different grid spacings are employed to investigate the effects of a grid resolution on the origin of the line of separation. Various shock strengths are used to study the so-called separated and unseparated boundary layer and to establish the existence or absence of secondary separation. The length of separation ahead of the flat-faced blunt fin, bifurcation of a horseshoe vortex, and the accessibility of a closed-type separation are investigated. The usual interpretation of the flow field from previous studies and new interpretations arising from the present simulation are discussed. Hung, Ching-Mao Ames Research Center ...
Computation Of Navier Stokes Equations For Three Dimensional Flow Separation
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Author :
language : en
Publisher:
Release Date : 1989
Computation Of Navier Stokes Equations For Three Dimensional Flow Separation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Computation Of Three Dimensional Shock Wave And Boundary Layer Interactions
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Author :
language : en
Publisher:
Release Date : 1985
Computation Of Three Dimensional Shock Wave And Boundary Layer Interactions written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
Using The Boundary Layer Equation In 3 Dimensional Viscous Flow Simulation
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Author :
language : en
Publisher:
Release Date : 1986
Using The Boundary Layer Equation In 3 Dimensional Viscous Flow Simulation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Fluid Dynamics Of Unsteady Three Dimensional And Separated Flows
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Author : Francis J. Marshall
language : en
Publisher:
Release Date : 1971
Fluid Dynamics Of Unsteady Three Dimensional And Separated Flows written by Francis J. Marshall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Boundary layer categories.
Three Dimensional Interactions And Vortical Flows With Emphasis On High Speeds
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Author : David J. Peake
language : en
Publisher:
Release Date : 1980
Three Dimensional Interactions And Vortical Flows With Emphasis On High Speeds written by David J. Peake and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Aerodynamics categories.
An Upwind Method For The Solution Of The 3d Euler And Navier Stokes Equations On Adaptively Meshes
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Author : Michael J. Aftosmis
language : en
Publisher:
Release Date : 1992
An Upwind Method For The Solution Of The 3d Euler And Navier Stokes Equations On Adaptively Meshes written by Michael J. Aftosmis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Navier-Stokes equations categories.
A new node based upwind scheme for the solution of the 3D Navier- Stokes equations on adaptively refined meshes is presented. The method uses a second-order upwind TVD scheme to integrate the convective terms, and discretizes the viscous terms with a new compact central difference technique. Grid adaptation is achieved through directional division of hexahedral cells in response to evolving features as the solution converges. The method is advanced in time with a multistage Runge-Kutta time stepping scheme. Two- and three- dimensional examples establish the accuracy of the inviscid and viscous discretization. These investigations highlight the ability of the method to produce crisp shocks, while accurately and economically resolving viscous layers. The representation of these and other structures is shown to be comparable to that obtained by structured methods. Further 3D examples demonstrate the ability of the adaptive algorithm to effectively locate and resolve multiple scale features in complex 3D flows with many interacting, viscous, and inviscid structures.
Computation Of Three Dimensional Turbulent Flow With The Parabolized Navier Stokes Equation And K E Turbulence Model
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Author : Jin Kim
language : en
Publisher:
Release Date : 1984
Computation Of Three Dimensional Turbulent Flow With The Parabolized Navier Stokes Equation And K E Turbulence Model written by Jin Kim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Navier-Stokes equations categories.
Solution Of The Three Dimensional Navier Stokes Equations For A Turbulent Horseshoe Vortex Flow
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Author : R. C. Buggelin
language : en
Publisher:
Release Date : 1987
Solution Of The Three Dimensional Navier Stokes Equations For A Turbulent Horseshoe Vortex Flow written by R. C. Buggelin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
The problem of three dimensional turbulent horseshoe vortex/corner flow is investigated numerically. Solutions of the compressible Reynolds averaged Navier Stokes equations are computed using a linearized block implicit scheme with Douglas Gunn splitting. Solutions are computed using both two equation (k-epsilon) and algebraic mixing length turbulence models, with grid distributions which provide resolution of the viscous sublayer regions. These computed results are displayed graphically and compared with recent experimental measurements. There is good qualitative agreement between computed and measured mean flow velocities, especially near the saddle point separation line. The computed corner flow has a multiple vortex structure. There are quantitative differences in details of the weak corner flows downstream of the leading edge, which may be attributable to the turbulence model used and/or numerical error. Convergence required approximately 150 iterations using a 60x50x40 grid (120,000 points) and required about 2.5 hours of CRAY-XMP run time. Keywords: Three Dimensional Flow; Navier Stokes Equations; Turbulent Flow; Horseshoe Vortex Flow; Implicit Algorithm.
Computation Of Transonic Separated Wing Flows Using An Euler Navier Stokes Zonal Approach
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Author : Ünver Kaynak
language : en
Publisher:
Release Date : 1985
Computation Of Transonic Separated Wing Flows Using An Euler Navier Stokes Zonal Approach written by Ünver Kaynak and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.