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Nanofluid unsteady heat transfer in a porous energy storage enclosure in existence of Lorentz forces
International Journal of Heat and Mass Transfer ( IF 5.2 ) Pub Date : 2018-12-01 , DOI: 10.1016/j.ijheatmasstransfer.2018.06.101
Zhixiong Li , M. Sheikholeslami , M. Samandari , Ahmad Shafee

Abstract In current article, nanofluid time dependent heat transfer under the influence of Lorentz forces during discharging process is simulated by means of FEM. In order to overcome the limitation of PCM, NEPCM has been utilized. CuO and water are employed as nanoparticles and PCM. Brownian motion role is taken into consideration to estimate nanofluid characteristics. Graphs are illustrated as isotherm, solid fraction and stream line contours. Results reveal that discharging rate improves with augment of Lorentz forces. As Hartmann number augments, solid fraction profile will be converged in lower time. Dispersing nanoparticles has significant impact on phase change front.

中文翻译:

存在洛伦兹力的多孔储能外壳中的纳米流体非稳态传热

摘要 本文利用有限元方法对放电过程中受洛伦兹力影响的纳米流体传热进行了仿真。为了克服PCM的局限性,NEPCM已经被利用。CuO和水被用作纳米颗粒和PCM。考虑布朗运动作用来估计纳米流体特性。图表以等温线、固体分数和流线等高线表示。结果表明放电率随着洛伦兹力的增加而提高。随着哈特曼数的增加,固体分数分布将在更短的时间内收敛。分散纳米粒子对相变前沿有显着影响。
更新日期:2018-12-01
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