TY - JOUR
TI - Viscosity and dispersion effects on natural convection from a vertical cone in a nonnewtonian fluid saturated porous medium
AU - Kairi Rishi Raj
JN - Thermal Science
PY - 2011
VL - 15
IS - 12
SP - 307
EP - 316
PT - Article
AB - This paper investigates the influence of double dispersion and viscosity on  natural convection heat and mass transfer from vertical cone in a non-Darcy  porous medium saturated with non- Newtonian fluid. The surface of the cone  and the ambient medium are maintained at constant but different levels of  temperature and concentration. The Ostwald-de Waele power law model is used  to characterize the non-Newtonian fluid behavior. A similarity solution for  the transformed governing equations is obtained. The numerical computation is  carried out for various values of the non-dimensional physical parameters.  The effect of non-Darcy parameter, viscosity parameter, thermal and solutal  dispersion, buoyancy ratio, Lewis number and power-law index parameter on the  temperature and concentration field as well as on the heat and mass transfer  coefficients is analyzed.