TEST OF SEVERAL VERSIONS FOR THE K-ε TYPE TURBULENCE MODELLING OF INTERNAL MIXED CONVECTION FLOWS

J.J.COSTA; L.A.OLIVEIRA; D.BLAY

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TEST OF SEVERAL VERSIONS FOR THE K-ε TYPE TURBULENCE MODELLING OF INTERNAL MIXED CONVECTION FLOWS

机译：内部混合对流的K-ε型湍流建模的多个版本测试

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The problem of confined,mixed convection airflow generated by two non-isothermal plane wall jets was investigated numerically and experimentally. Measurements of he velocity and temperature fields in a 1 x1m~2 cross-section cavity are reported. Eight low-Reynolds-number k-ε turbulence models were comparatively tested, together with a simplified version of the two-layer wall-function model of Chieng and Launder. Particular attention was given to the mean and turbulent quantities across the wall jet flows, and to the evaluation of the wall heat transfer. The low-Re model of Nagano and Hishida provided satisfactory results, which were still improved with two further modifications.

机译：数值和实验研究了两个非等温平面壁面射流产生的有限的混合对流气流问题。报道了在1 x1m〜2横截面腔中的速度和温度场的测量结果。对八个低雷诺数k-ε湍流模型以及Chieng和Launder的两层壁函数模型的简化版本进行了比较测试。尤其要注意壁面射流的平均和湍流量，以及壁面传热的评估。长野和H田的低Re模型提供了令人满意的结果，但仍进行了两次修改，从而得到了改进。

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《International Journal of Heat and Mass Transfer》 |1999年第23期|4391-4409|共19页
作者
J.J.COSTA; L.A.OLIVEIRA; D.BLAY;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类热力工程理论;热学;
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TEST OF SEVERAL VERSIONS FOR THE K-ε TYPE TURBULENCE MODELLING OF INTERNAL MIXED CONVECTION FLOWS

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