MHD free convection flow along a vertical wavy surface with heat generation or absorption effect

✍ Scribed by F.M. Hady; R.A. Mohamed; A. Mahdy

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 490 KB
• Volume: 33
• Category: Article
• ISSN: 0735-1933
• DOI: 10.1016/j.icheatmasstransfer.2006.06.007

✦ Synopsis

We formulate the problem of free convection from a vertical wavy surface embedded in a uniform porous medium in the presence of an external magnetic field and internal heat generation or absorption effects. Using the appropriate transformations, the boundary layer equations are reduced to non-linear partial differential equations. The transformed boundary layer equations are solved numerically using Runge-Kutta integration scheme with the shooting technique. We have focused our attention on the evaluation of the local Nusselt number Nu x , dimensionless velocity, f ′, and temperature, θ. The governing parameters are the amplitude of the waviness of the surface, a, ranging from 0.0 (flat plate) to 0.3, and the heat generation absorption parameter Q ranging from -0.25 to 0.25, and magnetic parameter Mn, ranging from 0.0 to 2.0. The effect of all these parameters are discussed and plotted.