Advanced search
Publication Cover
Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 68, 2015 - Issue 12
Submit an article Journal homepage
375
Views
10
CrossRef citations to date
0
Altmetric
Original Articles

Effects of Temperature-Dependent Viscosity on Natural Convection in Porous Media

Huann-Ming ChouDepartment of Mechanical Engineering, Kun Shan University, Yung-Kang City, Tainan Hsien, Taiwan, Republic of China
,
Horng-Wen WuDepartment of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of ChinaCorrespondence[email protected]
,
I-Hsuan LinDepartment of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China
,
Wei-Jen YangDepartment of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China
&
Ming-Lin ChengDepartment of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China
Pages 1331-1350 | Received 06 Jun 2014, Accepted 05 Dec 2014, Published online: 12 Jul 2015
 
Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days

Abstract

This analysis has studied natural convection for the temperature-dependent viscosity of fluids inside porous media between two concentric spheres by numerically solving the Brinkman–Darcy–Forchheimer model, vorticity transport, and energy equations. Parameters included Rayleigh numbers (5.0 × 103–8.0 × 104) at radius ratios of 1.5, 2.0, and 3.5 with porosities of 0.4 and 0.9 for variable-viscosity fluids with Prandtl numbers (158, 405, and 720) when the Darcy number was changed at 0.1 and 0.001. The results showed that the mean Nusselt number varied with Rayleigh number, porosity, radius ratio, and variable viscosity but did not change with the Darcy number.

Log in via your institution

Access through your institution

Log in to Taylor & Francis Online

Restore content access

Restore content access for purchases made as guest
Purchase options * Save for later

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 716.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.