Mixed and Forced Convection of Viscoelastic Materials in Straight Duct with Rectangular Cross Section
نویسنده
چکیده
Fluid flow and heat transfer of viscoelastic materials in noncircular duct are complicated subject because of nonlinear behavior of rheological properties. In this paper flow and heat transfer of CEF fluids are studied with numerical modeling. Numerical solution is based on the artificial compressibility method and by using staggered mesh. The effect of secondary flows on the forced and natural heat convection is studied and dis tribution of velocity, temperature, pressure and secondary flows are shown. The CFD code was used in this research work is written by authors. In this paper, it is shown that the buoyancy has too stronger effect on secondary flows generation and heat transfer than the second normal stress difference.
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