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层流下潜热型功能流体在内嵌圆柱圆管中的传热特性数值模拟分析 被引量:6

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摘要 采用等效比热法对功能流体在光滑直圆管和三种内嵌同轴圆柱的圆管内的流动和传热特性进行了数值模拟,并利用场协同理论对流场进行了分析.结果表明,在内嵌同轴圆柱的圆管中,功能流体的传热效果随着Ste数的减小而增大,这与功能流体在光滑直圆管中流动的情况类似,但是与光滑直圆管相比,功能流体在内嵌同轴圆柱的圆管内流动可以明显的提高换热能力,且换热强化随着内嵌圆柱的直径增加而增加,但功耗也明显增加.
出处 《中国科学(E辑)》 CSCD 北大核心 2009年第5期897-903,共7页 Science in China(Series E)
基金 国家自然科学基金项目(批准号:50436020)资助
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