Bifurcation study of thermal flows through a rotating curved square duct

A Numerical Study on Non-Isothermal Flow Through a Rotating Curved Duct with Square Cross Section

Abstract: Non-isothermal flow through a rotating curved duct with square cross section is studied numerically by using the spectral method, and covering a wide range of the Taylor number, Tr, 2000 0   Tr and Dean number, , Dn 0Dn 2000. A temperature difference is applied across the vertical sidewalls for Grashof number Gr = 500, where the outer wall is heated and the inner one cooled. The r...

Energy dissipation in flows through curved spaces

Fluid dynamics in intrinsically curved geometries is encountered in many physical systems in nature, ranging from microscopic bio-membranes all the way up to general relativity at cosmological scales. Despite the diversity of applications, all of these systems share a common feature: the free motion of particles is affected by inertial forces originating from the curvature of the embedding spac...

Steady and Unsteady Solutions of Non-Isothermal Turbulent Flow through a Curved Duct with Square Cross Section

In this paper, a comprehensive numerical study is presented for the fully developed two-dimensional flow of viscous incompressible fluid through a curved duct with square cross section. Numerical calculations are carried out over a wide range of the Dean number 6500 100   Dn for the curvature 5 . 0   . A temperature difference is applied across the vertical sidewalls for the Grashof number ...

Convective Heat Transfer of Nanofluids Flows Through an Isothermally Heated Curved Pipe

CuO/water Nanofluid Convective Heat Transfer Through Square Duct Under Uniform Heat Flux

Sometimes the need for non-circular ducts arises in many heat transfer applications because of lower pressure drop of non-circular cross section such as square duct compared to circular tube, particularly in compact heat. But square cross section has poor heat transfer performance and it is expected that using a nanofluid as a new heat transfer media may improve the heat transfer performance of...