Combined effect of magnetic field and heat absorption on unsteady free convection and heat transfer flow in a micropolar fluid past a semi-infinite moving plate with viscous dissipation using element free Galerkin method

2010 ◽  
Vol 217 (1) ◽  
pp. 308-321 ◽  
Author(s):  
Rajesh Sharma ◽  
R. Bhargava ◽  
I.V. Singh
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Free Convection ◽  
Heat Absorption ◽  
Element Free Galerkin Method ◽  
Moving Plate ◽  
Convection And Heat Transfer ◽  
Element Free Galerkin ◽  
Element Free ◽  
Transfer Flow

Welding Heat Transfer Analysis Using Element Free Galerkin Method

2011 ◽  
Vol 410 ◽  
pp. 298-301 ◽  
Author(s):  
Raj Das ◽  
K.S. Bhattacharjee ◽  
S. Rao
Keyword(s):  
Heat Transfer ◽  
Arc Welding ◽  
Heat Transfer Analysis ◽  
The Finite Element Method ◽  
Element Free Galerkin Method ◽  
High Deformation ◽  
New Class ◽  
Element Free Galerkin ◽  
Mesh Less ◽  
Element Free

Mesh-less methods belong to a new class of numerical methods in computational mechanics and offer several advantages over the conventional mesh-based methods. They enable modelling of processes involving high deformation, severe discontinuities (e.g. fracture) and multiple physical processes. These types of situations are usually encountered in arc welding, rendering its modelling suitable via mesh-less methods. In this paper, a mesh-less Element Free Galerkin (EFG) method has been developed to model the heat transfer during welding. The results predicted by the EFG method are found to be in close agreement with those obtained by the finite element method and those observed in welding experiments. This demonstrates the effectiveness and utilities of the EFG method for modelling and understanding the heat transfer processes in arc welding.

Convective heat transfer past a continuously moving plate embedded in a non-Darcian porous medium in the presence of a magnetic field

2001 ◽  
Vol 79 (7) ◽  
pp. 1031-1038 ◽  
Author(s):  
E M Abo-Eldahab ◽  
M S El Gendy
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Stretching Sheet ◽  
Skin Friction Coefficient ◽  
Moving Plate ◽  
Convection And Heat Transfer ◽  
Electrically Conducting ◽  
Boundary Layer Equations ◽  
Convective Parameter ◽  
Inertia Parameter

In the present study, free-convection and heat-transfer behavior of an electrically conducting fluid is investigated near a stretching sheet embedded in a non-Darcian medium. The temperature of the stretching sheet is varied. The sheet is stretched linearly with variable velocity and temperature. Boundary-layer equations are derived. The resulting approximate nonlinear ordinary differential equations are solved numerically. Velocity and temperature profiles as well as the local Nusselt number and skin-friction coefficient are computed for various values of the magnetic field, the Prandtl number, the free convective parameter, and the inertia parameter. PACS No.: 44.30+v

Sign in / Sign up

Export Citation Format

Share Document