图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
传热学
影响因子: 1.199 5年影响因子: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

卷:
卷 51, 2020 卷 50, 2019 卷 49, 2018 卷 48, 2017 卷 47, 2016 卷 46, 2015 卷 45, 2014 卷 44, 2013 卷 43, 2012 卷 42, 2011 卷 41, 2010 卷 40, 2009 卷 39, 2008 卷 38, 2007 卷 37, 2006 卷 36, 2005 卷 35, 2004 卷 34, 2003 卷 33, 2002 卷 32, 2001 卷 31, 2000 卷 30, 1999 卷 29, 1998 卷 28, 1997

传热学

DOI: 10.1615/HeatTransRes.2015010704
pages 295-308

NUMERICAL STUDY OF SLIP EFFECT AT THE POROUS MEDIUM/FLUID INTERFACE IN AN ENCLOSURE PARTIALLY FILLED WITH A POROUS MEDIUM

Baoming Chen
School of Energy and Power Engineering, Shandong University, Jinan, China; School of Thermal Energy Engineering, Shandong Jianzhu University, Jinan, China
Fang Liu
School of Thermal Energy Engineering, Shandong Jianzhu University, Jinan, China
Guoqing Zhang
Key Laboratory of Renewable Energy Utilization Technologies in Building, Ministry of Education, Shandong Key Laboratory of Renewable Energy Application Technology, School of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, PR China
Zhi Liu
Key Laboratory of Renewable Energy Utilization Technologies in Building, Ministry of Education, Shandong Key Laboratory of Renewable Energy Application Technology, School of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, PR China
Xiang Ji
Key Laboratory of Renewable Energy Utilization Technologies in Building, Ministry of Education, Shandong Key Laboratory of Renewable Energy Application Technology, School of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, PR China

ABSTRACT

Fluid flow and heat transfer in a cavity partially filled with a porous medium are studied numerically and the finite element method is used to solve the mathematical model based on a one-domain approach. The sketch of a real porous structure obtained by using X-ray computed tomography is imported into the physical model. The flow properties in the transition region and stress jump coefficient at the porous medium/fluid interface are analyzed for different Rayleigh numbers. The numerical results show that the shear stress in the transition region increased quickly compared with those in homogeneous regions. The change rate of velocity is larger than the change rate of shear stress. The coefficient keeps nearly constant at Ra ≤ 104, and increases slowly with the Rayleigh number, then quickly increases when Ra ≥ 106.


Articles with similar content:

NATURAL CONVECTION FLOW IN A SQUARE CAVITY FILLED WITH POROUS MEDIUM FOR SINUSOIDAL HEATED TOP WALL
Special Topics & Reviews in Porous Media: An International Journal, Vol.4, 2013, issue 4
M. Sathiyamoorthy
BUOYANCY EFFECT ON THE FLOW AND HEAT TRANSFER AROUND AN UNCONFINED HEATED SQUARE CYLINDER
ICHMT DIGITAL LIBRARY ONLINE, Vol.13, 2008, issue
Said Turki
NATURAL CONVECTION IN A SPHERICAL ANNULUS FILLED WITH HEAT GENERATING FLUID
International Heat Transfer Conference 7, Vol.3, 1982, issue
J. Nelsen, R. Douglass, D. R. Alexander
AUGMENTATION OF A HEAT REJECTION MECHANISM IN A VENTILATED ENCLOSURE FILLED PARTIALLY WITH A POROUS LAYER
Journal of Porous Media, Vol.15, 2012, issue 9
Khalil Khanafer, A. Al-Amiri
NUMERICAL STUDY OF NATURAL CONVECTION HEAT TRANSFER OF NANOFLUIDS IN PARTIALLY HEATED SEMI-ANNULI
Computational Thermal Sciences: An International Journal, Vol.6, 2014, issue 3
Antonio Campo, Nader Ben-Cheikh, Brahim Ben-Beya, Sonia Bezi