Forced convective transport of alumina–water nanofluid in micro-channels subject to constant heat flux
Forced convective transport of alumina–water nanofluid in micro-channels subject to constant heat flux
复制标题
微通道中氧化铝-水纳米流体在恒定热通量下的强制对流传输
DOI：
10.1016/j.ces.2016.06.029
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发表时间：
2016-10
影响因子：
4.7
通讯作者：
Ting Qiu
中科院分区：
文献类型：
--
作者：
Chen Yang;Kanglei Peng;Akira Nakayama;Ting Qiu
充分考虑尺度效应和纳米粒子在微通道中迁移的四种驱动机制，建立了改进的纳米流体Buongiorno模型。为了揭示氧化铝-水纳米流体在微通道流体动力学和热学充分发展区域中的纳米粒子迁移、传热和压降特性，采用龙格-库塔-吉尔方法求解所提出的控制方程。所得结果表明，粘性耗散项对加热和冷却情况的传热性能表现出不利影响。此外，研究发现，壁面滑移速度和温度跳变量的增加不仅增强了传热，而且降低了压降，表明纳米流体在微通道中的应用前景良好。最后，讨论了纳米颗粒迁移的四种驱动机制。结果清楚地表明，布朗扩散和热泳比剪切诱导扩散和粘度梯度诱导扩散更重要。
A modified Buongiorno model of nanofluids was established with full considerations of scaling effects and four driving mechanisms of nanoparticles migration in micro-channels. In order to reveal nanoparticles migration, heat transfer and pressure drop characteristics of alumina–water nanofluid in hydrodynamically and thermally fully developed region of micro-channels, the proposed governing equations were solved by means of the Runge-Kutta-Gill method. The obtained results demonstrated that the viscous dissipation term exhibits adverse influence on heat transfer performance for heating and cooling cases. Moreover, it has been found that the increase of the amount of slip velocity and temperature jump at the wall not only enhances heat transfer, but also decreases pressure drop, indicating promising application prospects of nanofluids in micro-channels. Eventually, four driving mechanisms of nanoparticles migration are discussed. The results clearly indicated that Brownian diffusion and thermophoresis are more important than shear-induced diffusion and viscosity gradient-induced diffusion.
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连续流和滑流状态下温度跃变对纳米流体强制对流传输的影响
影响因子：
4.7
作者：
Chen Yang;Qinglian Wang;Akira Nakayama;Ting Qiu
通讯作者：
Ting Qiu
DOI：
10.2514/8.11476
发表时间：
1946-01-01
期刊：
JOURNAL OF THE AERONAUTICAL SCIENCES
影响因子：
--
作者：
TSIEN, HS
通讯作者：
TSIEN, HS
影响因子：
3.1
作者：
Y. Buyevich;S. K. Kapbsov
通讯作者：
Y. Buyevich;S. K. Kapbsov
DOI：
10.1017/cbo9780511709333
发表时间：
--
期刊：
--
影响因子：
--
作者：
J. Maxwell
通讯作者：
J. Maxwell
具有不对称壁热通量的微型/微通道中通过微泡沫的滑流和传热的分析考虑
影响因子：
6.4
作者：
Xu H. J.;Zhao C. Y.;Xu Z. G.
通讯作者：
Xu Z. G.