دانلود مقاله Darcy Model for the Study of the Fluid Flow and Heat Transfer Around a Cylinder Embedded in Porous Media
Steady-state convective heat transfer around a circular cylinder
embedded in porous media is studied in the range of low and
moderate Peclet numbers less than 40. The cylinder is at constant
temperature and the Darcy model is used for the analysis of fluid
flow and heat transfer in porous media. The governing equations
are discretised using finite volume approach based on staggered
grids. The powerlaw scheme is used in the numerical solution and
a SIMPLE-like algorithm is developed and used in the solution process.
It is found that the numerical algorithm is sufficiently efficient
in the range of Peclet numbers less than 40. Parametric studies are
done for better understanding of the porous media effects on the
Nusselt number distribution, pressure distribution, and flow and
temperature fields around a circular cylinder. The results are compared
with the available numerical data in the literature and have
shown good agreements.