两种波纹板通道内的流动及换热比较

工程热物理学报 , 2008, 29(10): 1755-1758.

1.西安交通大学叶轮机械研究所,陕西,西安,710049

2.西安交通大学叶轮机械研究所,陕西,西安,710049

3.西安交通大学叶轮机械研究所,陕西,西安,710049

基金项目: 国家高技术研究发展计划(863计划)(2004AA503020)

COMPARISON STUDY OF FLOW AND HEAT TRANSFER CHARACTERISTICS IN TWO KINDS OF WAVY CHANNELS

采用非稳态算法,计算了周期性正弦型和三角形两种波纹板通道内的流动和换热,比较了它们的平均阻力系数和平均努赛尔数.结果表明:在较大流量下,两种通道内的流动均出现了自维持振荡现象,但是两者相比正弦型通道波纹板的换热和压降均较大.

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