Computation of Flow and Heat Transfer in Two-Pass Channels With 60 deg Ribs
Computation of Flow and Heat Transfer in Two-Pass Channels With 60 deg Ribs
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DOI：
10.1115/1.1371931
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发表时间：
2001-06
影响因子：
--
通讯作者：
Y. Jang;Hamn-Ching Chen;Je-Chin Han
中科院分区：
文献类型：
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作者：
Y. Jang;Hamn-Ching Chen;Je-Chin Han
对有和无60度平行肋的两道方形通道的三维流动和传热进行了数值预测。沿一侧表面采用方形截面肋。肋高-水力直径比（e/D h）为0.125，肋高-节比（P/e）为10。计算结果与Ekkad和Han在雷诺数（Re）为30000时的实验数据进行了比较。采用多块数值方法结合嵌合体区域分解技术。有限解析方法结合近壁二阶Reynolds应力（二阶矩）闭合模型和双层κ-e各向同性涡旋黏度模型求解Reynolds-平均Navier - Stokes方程
Numerical predictions of three-dimensional flow and heat transfer are presented for a two-pass square channel with and without 60 deg angled parallel ribs. Square sectioned ribs were employed along one side surface. The rib height-to-hydraulic diameter ratio (e/D h ) is 0.125 and the rib pitch-to-height ratio (P/e) is 10. The computation results were compared with the experimental data of Ekkad and Han at a Reynolds number (Re) of 30,000. A multi-block numerical method was used with a chimera domain decomposition technique. The finite analytic method solved the Reynolds-Averaged Navier Stokes equation in conjunction with a near-wall second-order Reynolds stress (second-moment) closure model, and a two-layer κ-e isotropic eddy viscosity model