APPLICATION OF DOMAIN DECOMPOSITION METHOD TO PREDICTION OF TURBULENT FLOW FIELDS

Zhang Chuhua; Liu Zhengxian; Gu Chuangang; Miao Yongmiao

Volume 12 Issue 4

Oct. 1997

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Article Navigation > Journal of Aerospace Power > 1997 > 12(4): 425-428

Zhang Chuhua, Liu Zhengxian, Gu Chuangang, Miao Yongmiao. APPLICATION OF DOMAIN DECOMPOSITION METHOD TO PREDICTION OF TURBULENT FLOW FIELDS[J]. Journal of Aerospace Power, 1997, 12(4): 425-428.

Citation:

Zhang Chuhua, Liu Zhengxian, Gu Chuangang, Miao Yongmiao. APPLICATION OF DOMAIN DECOMPOSITION METHOD TO PREDICTION OF TURBULENT FLOW FIELDS[J]. Journal of Aerospace Power, 1997, 12(4): 425-428.

Zhang Chuhua, Liu Zhengxian, Gu Chuangang, Miao Yongmiao. APPLICATION OF DOMAIN DECOMPOSITION METHOD TO PREDICTION OF TURBULENT FLOW FIELDS[J]. Journal of Aerospace Power, 1997, 12(4): 425-428.

Citation:

Zhang Chuhua, Liu Zhengxian, Gu Chuangang, Miao Yongmiao. APPLICATION OF DOMAIN DECOMPOSITION METHOD TO PREDICTION OF TURBULENT FLOW FIELDS[J]. Journal of Aerospace Power, 1997, 12(4): 425-428.

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APPLICATION OF DOMAIN DECOMPOSITION METHOD TO PREDICTION OF TURBULENT FLOW FIELDS

Dept.Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049

Received Date: 1996-10-01
Rev Recd Date: 1997-01-01
Publish Date: 1997-10-28

Abstract

Abstract

The Domain Decomposition Method (DDM) is applied to calculation of turbulent flow fields.A general DDM-1 scheme S_{I_{,ω is developed for turbulence equations with treatment of variables in overlapped domains.It features that the whole computational domain is decomposed into several subdomains according to the flow properties and the different decomposed domains employ corresponding physical models.A prediction of turbulent flow fields in a sudden pipe expansion was made and compared with the experimental data.It was shown that the scheme can predict the reattachment point,mean axial velocity and turbulence kinetic energy more accurately than the methods using a single model in entire domain.}}
- Decomposition method,
- Turbulent flow,
- Numerical simulation