Open AccessNatural Convection Flow over Wavy Horizontal Surface
Author(s) -
Sadia Siddiqa,
Md. Anwar Hossain
Publication year - 2013
Publication title -
advances in mechanical engineering/advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
eISSN - 1687-8140
pISSN - 1687-8132
DOI - 10.1155/2013/743034
Subject(s) - streamlines, streaklines, and pathlines , nusselt number , boundary layer , mechanics , partial differential equation , natural convection , mathematics , flow (mathematics) , boundary value problem , coordinate system , finite difference method , mathematical analysis , heat transfer , geometry , physics , reynolds number , turbulence
In this paper boundary layer analysis is performed over a heated horizontal wavy surface. The governing boundary layer equations are transformed into parabolic partial differential equations with the help of appropriate coordinate transformation. Parabolic partial differential equations are then solved numerically with finite difference scheme, seeking details of the momentum and energy fields. Step by step computations are done for the upstream, downstream, and entire regimes. The numerical results are thoroughly discussed in terms of local skin friction and local Nusselt number coefficients for various parameters, like phase shift parameter, φ, and amplitude of the wavy surface, a. In addition, streamlines and isotherms are also drawn in order to visualize velocity and temperature distributions, respectively, within the boundary layer region