Applications of scale-adaptive simulation technique based on one-equation turbulence model

doi:10.1007/s10483-015-1898-9

Applied Mathematics and Mechanics (English Edition) ›› 2015, Vol. 36 ›› Issue (1): 121-130.doi: https://doi.org/10.1007/s10483-015-1898-9

Applications of scale-adaptive simulation technique based on one-equation turbulence model

Chang-yue XU, Tao ZHOU, Cong-lei WANG, Jian-hong SUN

College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, P. R. China

收稿日期:2014-03-21 修回日期:2014-06-11 出版日期:2015-01-01 发布日期:2015-01-01
通讯作者: Chang-yue XU, Associate Professor, Ph.D., E-mail: cyxu@nuaa.edu.cn E-mail:cyxu@nuaa.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (No. 11202100), the Natural Science Fund in Jiangsu Province (No.BK2011723), the Fundamental Research Funds for the Central Universities (No.NS2012032), and the Priority Academic Program Development of Jiangsu Higher Education Institutions

Applications of scale-adaptive simulation technique based on one-equation turbulence model

Chang-yue XU, Tao ZHOU, Cong-lei WANG, Jian-hong SUN

College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, P. R. China

Received:2014-03-21 Revised:2014-06-11 Online:2015-01-01 Published:2015-01-01
Supported by:
Project supported by the National Natural Science Foundation of China (No. 11202100), the Natural Science Fund in Jiangsu Province (No.BK2011723), the Fundamental Research Funds for the Central Universities (No.NS2012032), and the Priority Academic Program Development of Jiangsu Higher Education Institutions

摘要/Abstract

摘要： A modified scale-adaptive simulation (SAS) technique based on the Spalart-Allmaras (SA) model is proposed. To clarify its capability in prediction of the complex turbulent flow, two typical cases are carried out, i.e., the subcritical flow past a circular cylinder and the transonic flow over a hemisphere cylinder. For comparison, the same cases are calculated by the detached-eddy simulation (DES), the delayed-detached eddy simulation (DDES), and the XY-SAS approaches. Some typical results including the mean pressure coefficient, velocity, and Reynolds stress profiles are obtained and compared with the experiments. Extensive calculations show that the proposed SAS technique can give better prediction of the massively separated flow and shock/turbulent-boundary-layer interaction than the DES and DDES methods. Furthermore, by the comparison of the XY-SAS model with the present SAS model, some improvements can be obtained.

关键词: cylinder, scale-adaptive simulation, turbulence, detached-eddy simulation

Abstract: A modified scale-adaptive simulation (SAS) technique based on the Spalart-Allmaras (SA) model is proposed. To clarify its capability in prediction of the complex turbulent flow, two typical cases are carried out, i.e., the subcritical flow past a circular cylinder and the transonic flow over a hemisphere cylinder. For comparison, the same cases are calculated by the detached-eddy simulation (DES), the delayed-detached eddy simulation (DDES), and the XY-SAS approaches. Some typical results including the mean pressure coefficient, velocity, and Reynolds stress profiles are obtained and compared with the experiments. Extensive calculations show that the proposed SAS technique can give better prediction of the massively separated flow and shock/turbulent-boundary-layer interaction than the DES and DDES methods. Furthermore, by the comparison of the XY-SAS model with the present SAS model, some improvements can be obtained.

Key words: cylinder, turbulence, scale-adaptive simulation, detached-eddy simulation

中图分类号:

Chang-yue XU;Tao ZHOU;Cong-lei WANG;Jian-hong SUN. Applications of scale-adaptive simulation technique based on one-equation turbulence model[J]. Applied Mathematics and Mechanics (English Edition), 2015, 36(1): 121-130.

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Applications of scale-adaptive simulation technique based on one-equation turbulence model

Applications of scale-adaptive simulation technique based on one-equation turbulence model

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