Convective heat transfer optimization based on minimum entransy dissipation in the circular tube
Convective heat transfer optimization based on minimum entransy dissipation in the circular tube
复制标题
基于最小火积耗散的圆管内对流传热优化
DOI：
10.1016/j.ijheatmasstransfer.2014.02.005
复制
发表时间：
2014-06
影响因子：
5.2
通讯作者：
Nakayama A
中科院分区：
文献类型：
--
作者：
Jia H;Liu Z C;Liu W;Nakayama A
本文研究了基于最小入口耗散的对流换热优化问题。以入口耗散为优化目标，以功率消耗为约束条件，利用变分原理推导了考虑附加体积力的对流换热优化流体动量方程。基于优化控制方程，对直圆管内的对流换热进行了数值研究。结果表明，管内存在多涡纵向旋流，在相对较小的流动阻力下具有强化换热的作用。目前对换热和流动的分析表明，这种优化流场可以实现比流动阻力大得多的换热增加，这表明所研究的优化方法在强化换热设计中是有用的。
Convective heat transfer optimization based on minimum entransy dissipation is studied in this paper. By setting entransy dissipation as optimization objective and power consumption as constraint condition, optimized fluid momentum equation with additional volume force for convective heat transfer are deduced by variational principle. Numerical investigations for convective heat transfer in a straight circular tube based on optimized governing equations are conducted. The results show that there exist longitudinal swirl flows with multi-vortexes in the tube, which leads to heat transfer enhancement at relatively small flow resistance. The present analysis for heat transfer and flow shows that this kind of optimized flow field can realize a far greater increase in heat transfer than that in flow resistance, which indicates that the investigated optimization method is useful in design of heat transfer enhancement.
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DOI：
10.1016/j.ijheatmasstransfer.2009.02.018
发表时间：
2009-09
影响因子：
5.2
作者：
L. Wei;Zhichun Liu;T. Ming;Zengyuan Guo
通讯作者：
L. Wei;Zhichun Liu;T. Ming;Zengyuan Guo
DOI：
10.1007/s11431-010-4067-4
发表时间：
2010-08
期刊：
Science China Technological Sciences
影响因子：
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作者：
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通讯作者：
Q. Xiao;Lingen Chen;F. Sun
DOI：
10.1016/j.ijheatmasstransfer.2006.04.035
发表时间：
2006-11
影响因子：
5.2
作者：
V. Zimparov;A. L. D. Silva;A. Bejan
通讯作者：
V. Zimparov;A. L. D. Silva;A. Bejan
影响因子：
10.4
作者：
Bejan, A
通讯作者：
Bejan, A
DOI：
10.1016/0017-9310(96)00175-5
发表时间：
1997-03-01
影响因子：
5.2
作者：
Bejan, A
通讯作者：
Bejan, A