A Computational Model For Three Dimensional Incompressible Wall Jets With Large Cross Flow
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A Computational Model For Three Dimensional Incompressible Wall Jets With Large Cross Flow
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Author : W. D. Murphy
language : en
Publisher:
Release Date : 1978
A Computational Model For Three Dimensional Incompressible Wall Jets With Large Cross Flow written by W. D. Murphy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
The flow field of three dimensional incompressible wall jets prototypic of thrust augmenting ejectors with large cross flow is solved using a very efficient centered-Euler scheme in an orthogonal curvilinear coordinate system. The computational model treats initial conditions with arbitrary velocity profiles at or downstream of the jet exit. An averaging approach is employed for the first few marching steps to overcome spurious numerical oscillations associated with arbitrary initial profiles. Laminar as well as turbulent wall jets are simulated. Turbulence is introduced using a two layer mixing length model appropriate to curved three-dimensional wall jets. Typical results quantifying jet spreading, jet growth, nominal separation and jet shrink effects due to cross flow are presented.
A Computational Model For Three Dimensional Incompressible Small Cross Flow Wall Jets
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Author : Norman D. Malmuth
language : en
Publisher:
Release Date : 1977
A Computational Model For Three Dimensional Incompressible Small Cross Flow Wall Jets written by Norman D. Malmuth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.
A computational model based on H. Keller's box scheme has been used to characterize turbulent incompressible wall jets in the small cross flow approximation prototypic of flows over upper-surface-blown and augmenter wings. Submerged and coflowing cases are considered. An eddy viscosity model was used to simulate the effects of turbulence. Approximate models are identified for flows in which the jet height tends to zero. If the span flow is introduced through a lateral curvature term appearing in the spanwise momentum equation, the effect of the turbulent coupling on the surface pressures, and peak spanwise velocities is weak. (Author).
Workshop On Thrust Augmenting Ejectors
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Author :
language : en
Publisher:
Release Date : 1979
Workshop On Thrust Augmenting Ejectors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Airplanes categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
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 1995 with Aeronautics categories.
Computation Of Incompressible Three Dimensional Turbulent Boundary Layers And Comparison With Experiment
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-08-13
Computation Of Incompressible Three Dimensional Turbulent Boundary Layers And Comparison With Experiment 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 2018-08-13 with categories.
Incompressible three dimensional, turbulent boundary layer (3DTBL) experiments were simulated numerically by integrating the boundary layer equations together with an algebraic eddy viscosity turbulence model. For the flow treated, the downstream portion, where the crossflow was large, was not predicted with the present computational method; the flow was significantly influenced by elliptic flow field effects. Departures from the boundary layer concept are indicated. Calculations agreed reasonably well with the mean flow development up to separation. In one experiment the normal pressure gradients were found to be neligible in regions with large skewing and allowed testing turbulence models using the boundary layer equations. The simulation of this flow compared favorably with the experimental data throughout the flow field and suggested the applicability of algebraic eddy viscosity models for 3DTBLs. Mueller, U. R. Ames Research Center NASA-TM-84230, A-8873, NAS 1.15:84230 ...
Computational Modelling Of Three Dimensional Impinging Jets With And Without Cross Flow Using Second Moment Closure
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Author : Michael Leschziner
language : en
Publisher:
Release Date : 1994
Computational Modelling Of Three Dimensional Impinging Jets With And Without Cross Flow Using Second Moment Closure written by Michael Leschziner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aerodynamics categories.
Manipulation And Control Of Jets In Crossflow
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Author : Ann R. Karagozian
language : en
Publisher: Springer
Release Date : 2014-05-04
Manipulation And Control Of Jets In Crossflow written by Ann R. Karagozian and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-04 with Technology & Engineering categories.
Fundamental Non-Reactive Jets in Crossflow and Other Jet Systems; Background on Modeling, Dynamical Systems, and Control; Reactive Jets in Crossflow and Multiphase Jets; Controlled Jets in Crossflow and Control via Jet Systems;
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date :
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.
Japanese Science And Technology
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Author :
language : en
Publisher:
Release Date : 1986
Japanese Science And Technology 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 Science categories.
Computational Fluid And Solid Mechanics 2003
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Author : K.J Bathe
language : en
Publisher: Elsevier
Release Date : 2003-06-02
Computational Fluid And Solid Mechanics 2003 written by K.J Bathe and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-06-02 with Science categories.
Bringing together the world's leading researchers and practitioners of computational mechanics, these new volumes meet and build on the eight key challenges for research and development in computational mechanics. Researchers have recently identified eight critical research tasks facing the field of computational mechanics. These tasks have come about because it appears possible to reach a new level of mathematical modelling and numerical solution that will lead to a much deeper understanding of nature and to great improvements in engineering design. The eight tasks are: The automatic solution of mathematical models Effective numerical schemes for fluid flows The development of an effective mesh-free numerical solution method The development of numerical procedures for multiphysics problems The development of numerical procedures for multiscale problems The modelling of uncertainties The analysis of complete life cycles of systems Education - teaching sound engineering and scientific judgement Readers of Computational Fluid and Solid Mechanics 2003 will be able to apply the combined experience of many of the world's leading researchers to their own research needs. Those in academic environments will gain a better insight into the needs and constraints of the industries they are involved with; those in industry will gain a competitive advantage by gaining insight into the cutting edge research being carried out by colleagues in academia. Features Bridges the gap between academic researchers and practitioners in industry Outlines the eight main challenges facing Research and Design in Computational mechanics and offers new insights into the shifting the research agenda Provides a vision of how strong, basic and exciting education at university can be harmonized with life-long learning to obtain maximum value from the new powerful tools of analysis