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laoniu0714

金虫 (小有名气)

[求助] 求助论文摘要 急急急 大神们帮帮忙啊!!!!!!

本文对圆管、椭圆管和滴形管的管外空气侧的流动进行数值模拟比较三种强化换热管的换热性能的优劣,得出滴形管的流动与传热综合性能较优,椭圆管次之,圆管较差的结论,并利用场协同原理对模拟结果进行分析,验证了数值模拟结果的正确性。根据换热性能分析标准定义了无量纲参数N0来综合评价换热表面的强化换热效果,得出和场协同原理相似的结论。




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laoniu0714

金虫 (小有名气)

The author gives us a numerical simulation on the air motion outside the tube about circular tube, elliptical tube and dropwise tube, making comparisons on the heat transfer function of three different heat exchangers. Then the author gets the conclusion that the air motion and comprehensive heat transfer function of the dropwise tube are the best, then comes the elliptical tube, and the lest one is circular tube. Then the author making analysis by the field synergy principle and verify the conclusion. According to the heat exchange performance analysis standard, the author defines the dimensionless parameter N0. to evaluate the heat transfer function of heat exchange surface, and reaches a similar conclusion with field synergy principle.
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