Calculation of Reattaching Shear Layers in Divergent Channel with a Multiple-Time-Scale Turbulence Model
Calculation of Reattaching Shear Layers in Divergent Channel with a Multiple-Time-Scale Turbulence Model

Author: National Aeronautics and Space Adm Nasa

Publisher: Independently Published

Published: 2018-10-24

Total Pages: 28

ISBN-13: 9781729189139

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Numerical calculations of turbulent reattaching shear layers in a divergent channel are presented. The turbulence is described by a multiple-time-scale turbulence model. The turbulent flow equations are solved by a control-volume based finite difference method. The computational results are compared with those obtained using k-epsilon turbulence models and algebraic Reynolds stress turbulence models. It is shown that the multiple-time-scale turbulence model yields significantly improved computational results than the other turbulence models in the region where the turbulence is in a strongly inequilibrium state. Kim, S.-W. Glenn Research Center NASA ORDER C-99066-G; RTOP 505-62-21

Fundamentals Of Turbulence Modelling
Fundamentals Of Turbulence Modelling

Author: Ching Jen Chen

Publisher: CRC Press

Published: 1997-12-01

Total Pages: 312

ISBN-13: 9781560324058

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Focuses on the second-order turbulence-closure model and its applications to engineering problems. Topics include turbulent motion and the averaging process, near-wall turbulence, applications of turbulence models, and turbulent buoyant flows.