Numerical Investigation of Flow in an Asymmetric Plane Diffuser Using a Multi-Scale Turbulence Model-Reference-Cited by-同舟云学术

Numerical Investigation of Flow in an Asymmetric Plane Diffuser Using a Multi-Scale Turbulence Model

Published:2014-10 Issue: Volume:654 Page:51-56
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Shi Zhong¹,Li Zhi Qiang¹,Gao Ge¹,Dong He¹,Guo Jian²,Tang Wen Dong³

Affiliation:

1. Beijing University of Aeronautics and Astronautics

2. Aviation Industry Corporation of China

3. Northwestern Polytechnical University

Abstract

The flow in an asymmetric plane diffuser was simulated using both the multiscale turbulence model based on the variable interval time average method and the standardk-εmodel based on the Reynolds average method. The numerical method used in this simulation is an unstructured staggered mesh scheme. The capability of the multi-scale model to simulate flow in an asymmetric plane diffuser has been validated. Pressure coefficient, frictional resistance coefficient and mean velocity profiles downstream are in agreement with experiments. Moreover, the results predicted by the multi-scale model are better than that predicted by the standardk-εmodel. The computational results show that the multiscale turbulence model can successfully simulate this type of separated flow.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.654.51.pdf

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