Experimental And Numerical Investigation Of The Three Dimensional Flow In Cavities
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Experimental And Numerical Investigation Of The Three Dimensional Flow In Cavities
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Author : Douglas Daniel McKiernan
language : en
Publisher:
Release Date : 1996
Experimental And Numerical Investigation Of The Three Dimensional Flow In Cavities written by Douglas Daniel McKiernan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Nonlinear Transient Phenomena In A Three Dimensional Cavity Flow
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Author : Christopher Joseph Freitas
language : en
Publisher:
Release Date : 1986
Nonlinear Transient Phenomena In A Three Dimensional Cavity Flow written by Christopher Joseph Freitas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Fluid dynamics categories.
Experimental And Numerical Study Of Flow Structures Associated With Low Aspect Ratio Elliptical Cavities
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Author : Taravat Khadivi
language : en
Publisher:
Release Date : 2012
Experimental And Numerical Study Of Flow Structures Associated With Low Aspect Ratio Elliptical Cavities written by Taravat Khadivi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
The flow regimes associated with a 2:1 aspect ratio, elliptical planform cavity in a turbulent flat plate boundary layer have been systematically examined for various depth/width ratios (0.1 to 1.0) and yaw angles (0° to 90°), using a combination of wind tunnel experiments (involving Particle Image Velocimetry and helium bubble visualization) and Computational Fluid Dynamics (CFD) simulations (employing three- dimensional steady calculations with the Reynolds Stress model turbulence closure). Satisfactory agreement has been found between the results using the two methods, indicating that the steady numerical simulations can be a cost-effective tool to predict the mean flow features. The flow has been found to be highly dependent on yaw angle and cavity depth. For each of the three broad flow categories specified according to yaw angle, which include the symmetric flow regime (yaw angle = 0°), the straight vortex regime (yaw angle = 90°) and the asymmetric flow regime (15° ≤ yaw angle ≤ 60°) different regimes are found to exist, depending on cavity depth. For each combination of yaw angle and depth, the flow has been analyzed through investigation of shear layer parameters, the three-dimensional vortex structure, pressure distribution and drag, wake flow, and vortex oscillations. While the elliptical cavity flows have been found to have some similarities with those of nominally two-dimensional and rectangular cavities, the three-dimensional effects due to the low aspect ratio and curvature of the walls give rise to features exclusive to low aspect ratio elliptical cavities, including formation of cellular structures at intermediate depths and unique vortex structures within and downstream of the cavity. The three-dimensional flow structure of the flow is most pronounced in the asymmetric regimes with large yaw angles (45° and 60°). The dominant feature in this regime is the formation of a trailing vortex that is associated with high drag and flow oscillations within the cavity.
Navier Stokes Calculations Of Transonic Flows Past Cavities
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-09
Navier Stokes Calculations Of Transonic Flows Past Cavities 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 2018-07-09 with categories.
A computational investigation of subsonic and transonic flows past three dimensional deep and transitional cavities is presented. Computational simulations of these self induced oscillatory flows were generated through time accurate solutions of the Reynolds averaged full Navier-Stokes equations, using the explicit MacCormack scheme. The Reynolds stresses were included through the Baldwin-Lomax algebraic turbulence model with certain modifications. Two cases were computed to demonstrate the capability of the numerical scheme in modeling the complex three dimensional flow features inside a cavity. The results from an experimental investigation were used not only to benchmark the computations, but also to widen the database used for the discussions and conclusions. The computational results include instantaneous and time averaged flow properties everywhere in the computational zone. Time series analyses were performed for the instantaneous pressure values on the cavity floor. The features of deep and transitional cavity flows, and the effects of the sidewall on the cavity flow flowfield are illustrated through computational graphics. Baysal, Oktay Unspecified Center NCC1-121...
Numerical And Experimental Investigation Of Flow Structure And Heat Transfer In A Rotating Cavity With An Axial Throughflow Of Cooling Air
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Author : P. G. Tucker
language : en
Publisher:
Release Date : 1993
Numerical And Experimental Investigation Of Flow Structure And Heat Transfer In A Rotating Cavity With An Axial Throughflow Of Cooling Air written by P. G. Tucker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Fluid mechanics categories.
Experimental And Numerical Investigation Of The Flow In A Toroidal Cavity
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Author : Mohammad Yousuf Suliman Al-Shannag
language : en
Publisher:
Release Date : 2002
Experimental And Numerical Investigation Of The Flow In A Toroidal Cavity written by Mohammad Yousuf Suliman Al-Shannag and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
An Experimental Investigation Of Three Dimensional Modes In Perdiodically Driven Cavity Flow
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Author : Jonathan J. F. Leung
language : en
Publisher:
Release Date : 2004
An Experimental Investigation Of Three Dimensional Modes In Perdiodically Driven Cavity Flow written by Jonathan J. F. Leung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Experimental And Numerical Investigation Of Driven Cavity Flows
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Author : Piers D. Treacher
language : en
Publisher:
Release Date : 2003
Experimental And Numerical Investigation Of Driven Cavity Flows written by Piers D. Treacher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
An Experimental And Numerical Investigation Of Turbulent Recirculating Flow Within A Cavity With An Inlet Wall Jet
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Author : David Andrew Johnson
language : en
Publisher:
Release Date : 1988
An Experimental And Numerical Investigation Of Turbulent Recirculating Flow Within A Cavity With An Inlet Wall Jet written by David Andrew Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Fluid dynamics categories.
Navier Stokes Calculations Of Transonic Flows Past Cavities
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Author : Oktay Baysal
language : en
Publisher:
Release Date : 1989
Navier Stokes Calculations Of Transonic Flows Past Cavities written by Oktay Baysal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Aerodynamics, Transonic categories.