Investigation of the thermal mixing in a T-junction flow with different SRS approaches

被引：25

作者：

Gritskevich, M. S. ^{[1
]}

Garbaruk, A. V. ^{[1
]}

Frank, Th. ^{[2
]}

Menter, F. R. ^{[2
]}

机构：

[1] St Petersburg State Polytech Univ, St Petersburg 195251, Russia

[2] ANSYS, Software Dev Dept, D-83714 Otterfing, Germany

来源：

NUCLEAR ENGINEERING AND DESIGN | 2014年 / 279卷

基金：

俄罗斯基础研究基金会;

关键词：

DETACHED-EDDY SIMULATION; UNSTRUCTURED MESHES; RANS-LES; TURBULENT; AIRFOIL; MODEL;

D O I：

10.1016/j.nucengdes.2014.03.010

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

An investigation of different turbulence Scale-Resolving Simulation (SRS) modeling approaches for the flow in a T-junction has been conducted using the Scale-Adaptive Simulation (SAS), the Delayed Detached Eddy Simulation (DDES) and the Embedded Large Eddy Simulation (ELES) methods. The results show that all models are able to accurately predict mean and RMS velocity profiles and velocity spectra, when are used in combination with a low dissipation advection scheme. However, when a slightly more dissipative scheme is used, the SAS model yields less accurate results, indicating that this flow does not produce a strong enough flow instability to allow the safe application of this model. The DDES and the ELES models show less sensitivity to the numerical setting compared to the SAS model. The main goal of the study is the accurate prediction of heat transfer on the walls in the mixing zone. In that respect, the ELES method produces the most consistent agreement with the experimental data. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：83 / 90

页数：8

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