Sains Malaysiana 43(10)(2014):
1583–1591
MHD Mixed Convection Peristaltic Flow with Variable Viscosity
and Thermal Conductivity
(Aliran Peristalsis Perolakan MHD Bercampur
dengan Kelikatan yang Berubah-ubah dan Kekonduksian Terma)
T. HAYAT1,2, F.M. ABBASI1*, B. AHMAD2 & A. ALSAEDI2
1Department
of Mathematics, Quaid-I-Azam University 45320, Islamabad 44000
Pakistan
2Nonlinear Analysis
and Applied Mathematics (NAAM), Research Group
Faculty
of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Diserahkan: 13 Januari 2014/Diterima: 3 Mac 2014
ABSTRACT
This article concerns with a mixed convection peristaltic flow of
an electrically conducting fluid in an inclined asymmetric channel. Analysis
has been carried out in the presence of Joule heating. The fluid viscosity and
thermal conductivity are assumed to vary as a linear function of temperature. A
nonlinear coupled governing system is computed. Numerical results were
presented for the velocity, pressure gradient, temperature and streamlines.
Heat transfer rate at the wall is computed and analyzed. Graphs reflecting the
contributions of embedded parameters were discussed.
Keywords: Joule heating; mixed convection; variable thermal
conductivity; variable viscosity
ABSTRAK
Artikel ini berkaitan dengan aliran peristalsis
perolakan yang bercampur dengan cecair elektrik yang dijalankan di saluran
asimetri cenderung. Analisis telah dijalankan dengan kehadiran pemanas
Joule. Kelikatan cecair dan kekonduksian terma
dianggap berubah sebagai fungsi linear suhu. Sistem pengelasan
terganding tak linear dikira. Keputusan kajian berangka
dibentangkan bagi halaju, kecerunan tekanan, suhu dan arus. Kadar pemindahan haba pada dinding dikira dan dianalisis. Graf yang mencerminkan sumbangan parameter yang tertanam
dibincangkan.
Kata kunci: Kekonduksian terma yang
berubah-ubah; kelikatan yang berubah-ubah; pemanas Joule; perolakan bercampur
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*Pengarang
untuk surat-menyurat; email: abbasisarkar@gmail.com
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