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research-article

A cubic nonlinear SGS model for large-eddy simulation

[+] Author and Article Information
Huang Xianbei

Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, College of Water Resources and Civil Engineering, China Agricultural University Beijing 100083, China
znhuang@163.com

Liu Zhuqing

Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
lzq@cau.edu.cn

Yang Wei

Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
wyang@cau.edu.cn

Li Yaojun

Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
liyaojun@cau.edu.cn

Yang Zixuan

Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
yangz348@ad.umanitoba.ca

1Corresponding author.

ASME doi:10.1115/1.4035217 History: Received May 26, 2015; Revised October 26, 2016

Abstract

In this paper, a new cubic SGS model is proposed to capture the rotation effect. Different from the conventional nonlinear model with second order term, the new model contains a cubic term which is originated in the Reynolds stress closure. All the three model coefficients are determined dynamically using the Germano’s identity. The model is examined in the rotating turbulent channel flow and the Taylor-Couette flow. Comparing with the linear model and the second order model, the new model shows better performance.

Copyright (c) 2016 by ASME
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