CAJ | 학술논문

采用相同的湍流模型，从网格无关性角度研究了蛇形冷却通道的流动与换热问题。结果表明：当采用第一层网格距壁面法向距离Δy分别为0.0001 mm和0.001 mm，网格密度Ra 为1.3的分块结构化网格，计算和试验结果吻合较好；相对光滑管道网格划分，带肋通道的网格划分更为不敏感。
채용상동적단류모형，종망격무관성각도연구료사형냉각통도적류동여환열문제。결과표명：당채용제일층망격거벽면법향거리Δy분별위0.0001 mm화0.001 mm，망격밀도Ra 위1.3적분괴결구화망격，계산화시험결과문합교호；상대광활관도망격화분，대륵통도적망격화분경위불민감。
Using the same turbulence model, the flow and heat transfer characteristics in serpentine cooling channels were studied from the perspective of grid independence .The results showed that when using block structured grid with normal spacing at no -slip wallsΔy were 0.0001 mm, 0.001 mm and grid density Ra was 1.3, the computation results agreed well with experimental results .Passages with rib turbulators are not sensitive for mesh generation compared with smooth passages .