Modeling The Dissipation Rate In Rotating Turbulent Flows
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Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 34 |
Release | : 2018-07-05 |
Genre | : |
ISBN | : 9781722381585 |
Download Modeling the Dissipation Rate in Rotating Turbulent Flows Book in PDF, Epub and Kindle
A variety of modifications to the modeled dissipation rate transport equation that have been proposed during the past two decades to account for rotational strains are examined. The models are subjected to two crucial test cases: the decay of isotropic turbulence in a rotating frame and homogeneous shear flow in a rotating frame. It is demonstrated that these modifications do not yield substantially improved predictions for these two test cases and in many instances give rise to unphysical behavior. An alternative proposal, based on the use of the tensor dissipation rate, is made for the development of improved models. Speziale, Charles G. and Raj, Rishi and Gatski, Thomas B. Langley Research Center NAS1-18605...
Author | : C. G. Speziale |
Publisher | : |
Total Pages | : 36 |
Release | : 1990 |
Genre | : |
ISBN | : |
Download Modeling the Dissipation Rate in Rotating Turbulent Flows Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 32 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download Discussion of Turbulence Modelling: Past and Future Book in PDF, Epub and Kindle
Author | : Y. Kaneda |
Publisher | : Springer Science & Business Media |
Total Pages | : 409 |
Release | : 2013-03-09 |
Genre | : Technology & Engineering |
ISBN | : 4431670025 |
Download Statistical Theories and Computational Approaches to Turbulence Book in PDF, Epub and Kindle
This volume contains the papers presented at the workshop on Statistical The ories and Computational Approaches to Turbulence: Modern Perspectives and Applications to Global-Scale Flows, held October 10-13, 2001, at Nagoya Uni versity, Nagoya, Japan. Because of recent developments in computational capabilities, the compu tational approach is showing the potential to resolve a much wider range of length and time scales in turbulent physical systems. Nevertheless, even with the largest supercomputers of the foreseeable future, development of adequate modeling techniques for at least some scales of motion will be necessary for practical computations of important problems such as weather forecasting and the prediction and control of global pollution. The more powerful the available machines become, the more demand there will be for precise prediction of the systems. This means that more precise and reliable knowledge of the underlying dynamics will become important, and that more efficient and precise numerical methods best adapted to the new generation of computers will be necessary. The understanding of the nature of unresolved scales then will playa key role in the modeling of turbulent motion. The challenge to turbulence theory here is to elucidate the physics or dynamics of those scales, in particular their sta tistical aspects, and thereby develop models on sound bases to reduce modeling ambiguity. The challenge to the computational method is to develop efficient algorithms suitable for the problems, the machines, and the developed models.
Author | : |
Publisher | : |
Total Pages | : 536 |
Release | : 1992 |
Genre | : Computational fluid dynamics |
ISBN | : |
Download Workshop on Engineering Turbulence Modeling Book in PDF, Epub and Kindle
Author | : Kemal Hanjalić |
Publisher | : Cambridge University Press |
Total Pages | : 403 |
Release | : 2011-10-20 |
Genre | : Science |
ISBN | : 0521845750 |
Download Modelling Turbulence in Engineering and the Environment Book in PDF, Epub and Kindle
A comprehensive account of advanced RANS turbulence models including numerous applications to complex flows in engineering and the environment.
Author | : Amitabh Bhattacharya |
Publisher | : |
Total Pages | : 114 |
Release | : 2002 |
Genre | : Fluid dynamics |
ISBN | : |
Download Modeling Rotating Turbulent Flows Using the Turbulent Body Force Potential Model Book in PDF, Epub and Kindle
Author | : Charles G. Speziale |
Publisher | : |
Total Pages | : 50 |
Release | : 1995 |
Genre | : |
ISBN | : |
Download A Review of Reynolds Stress Models for Turbulent Shear Flows Book in PDF, Epub and Kindle
Author | : Aamir Shabbir |
Publisher | : |
Total Pages | : 34 |
Release | : 1992 |
Genre | : Reynolds stress |
ISBN | : |
Download Critical Assessment of Reynolds Stress Turbulence Models Using Homogeneous Flows Book in PDF, Epub and Kindle
Author | : Institute for Computer Applications in Science and Engineering |
Publisher | : |
Total Pages | : 28 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download A Critical Comparison of Turbulence Models for Homogeneous Shear Flows in a Rotating Frame Book in PDF, Epub and Kindle