Natural convection of non-Newtonian power-law fluid over axisymmetric and two-dimensional bodies of arbitrary shape in fluid-saturated porous media |
| |
Authors: | S M Abdel-Gaied M R Eid |
| |
Institution: | S.M.ABDEL-GAIED,M.R.EID(Department of Science and Mathematics,Faculty of Education,Assiut University,The New Valley 72111,Egypt) |
| |
Abstract: | Numerical analysis of the free convection coupled heat and mass transfer is presented for non-Newtonian power-law fluids with
the yield stress flowing over a two-dimensional or axisymmetric body of an arbitrary shape in a fluid-saturated porous medium.
The governing boundary layer equations and boundary conditions are cast into a dimensionless form by the similarity transformation.
The resulting system of equations is solved by a finite difference method. The parameters studied are the rheological constants,
the buoyancy ratio, and the Lewis number. Representative velocity, temperature, and concentration profiles are presented and
discussed. It is found that the results depend strongly on the values of the yield stress parameter and the power-law index
of the non-Newtonian fluid. |
| |
Keywords: | non-Newtonian fluid porous medium yield stress |
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录! |
|