Numerical simulation of natural convection in a porous enclosure with double sinusoidal heating boundary conditions

doi:10.3969/j.issn.0438-1157.2013.04.013

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	Numerical simulation of natural convection in a porous enclosure with double sinusoidal heating boundary conditions
	Wu, Feng 1; Wang, Gang 2; Ma, Xiaoxun 1
刊名	Huagong Xuebao/CIESC Journal
	2013-04-01
卷号	64 期号:4 页码:1217-1225
关键词	Enclosures Natural convection Nusselt number Porous materials Local Nusselt number Local thermal non-equilibrium Porous medium Sinusoidal heating Sinusoidal temperature Spatial coordinates Temperature fluctuation Uniform temperature
ISSN号	04381157
DOI	10.3969/j.issn.0438-1157.2013.04.013
英文摘要	Steady non-Darcian natural convection in a square cavity filled with a heat-generating porous medium is studied numerically with the local thermal non-equilibrium model, with SIMPLER algorithm in the spatial coordinates. The top and bottom walls of the enclosure are adiabatic and the left and right walls are partially heated and cooled by sinusoidal temperature profile. The results show that the temperature fields near the left wall and local Nusselt number of left wall vary periodically because of the sinusoidal boundary condition. When the parameter N for temperature fluctuations is larger enough, the streamlines, temperature fields of fluid and solid in the enclosure are similar to the results when the temperature at boundaries are uniform, while the heat transfer is enhanced by the sinusoidal boundary conditions compared with the uniform temperature boundary conditions. © All Rights Reserved.
语种	中文
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113731]
专题	兰州理工大学土木工程学院
作者单位	1.Chemical Eng. Research Center of the Min. of Edu. for Advanced Use Technol. of Shanbei Energy, School of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi, China; 2.School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
推荐引用方式 GB/T 7714	Wu, Feng,Wang, Gang,Ma, Xiaoxun. Numerical simulation of natural convection in a porous enclosure with double sinusoidal heating boundary conditions[J]. Huagong Xuebao/CIESC Journal,2013,64(4):1217-1225.
APA	Wu, Feng,Wang, Gang,&Ma, Xiaoxun.(2013).Numerical simulation of natural convection in a porous enclosure with double sinusoidal heating boundary conditions.Huagong Xuebao/CIESC Journal,64(4),1217-1225.
MLA	Wu, Feng,et al."Numerical simulation of natural convection in a porous enclosure with double sinusoidal heating boundary conditions".Huagong Xuebao/CIESC Journal 64.4(2013):1217-1225.