Prandtl Number Effect of Mixed Convection Heat and Mass Transfer in a Triangular Enclosure with Heated Circular Obstacle
Open Access
- 1 January 2016
- journal article
- Published by Science Publishing Group in International Journal of Energy and Power Engineering
- Vol. 5 (2) , 39
Abstract
The effect of Prandtl number of mixed convection heat and mass transfer in a triangular enclosure with heated and concentrated circular obstacle is analyzed by solving mass, momentum, energy and concentration balance equations. The left lower middle and right upper middle walls are kept at low temperature and concentration. All others wall are assumed to be adiabatic. The lower wall is moving in the +x direction and all others walls are maintained at no-slip condition. Moreover, Galerkin Weighted Residuals finite element method is applied to solve the governing equations. The study is performed for different values of Prandtl number, Richardson number and buoyancy ratio. A simple transformation is employed to transfer the governing equations into a dimensionless form. The result shows that at high Pr heat transfer rate increase rapidly and at low Pr it increases linearly with the increase of Ri. However, buoyancy ratio and Lewis number plays an important role for the flow, temperature and concentration fields.Keywords
This publication has 17 references indexed in Scilit:
- Numerical simulation of double diffusive mixed convection in an open enclosure with different cylinder locationsInternational Communications in Heat and Mass Transfer, 2014
- Effects of Lewis number on heat and mass transfer in a triangular cavityInternational Communications in Heat and Mass Transfer, 2012
- Finite element simulation of MHD combined convection through a triangular wavy channelInternational Communications in Heat and Mass Transfer, 2012
- Finite element simulation of mixed convection heat and mass transfer in a right triangular enclosureInternational Communications in Heat and Mass Transfer, 2012
- Numerical study on the conjugate effect of joule heating and magnato-hydrodynamics mixed convection in an obstructed lid-driven square cavityInternational Communications in Heat and Mass Transfer, 2010
- The effects of Prandtl number on natural convection in triangular enclosures with localized heating from belowInternational Communications in Heat and Mass Transfer, 2007
- Combined forced and natural convection heat transfer in a deep lid-driven cavity flowInternational Journal of Heat and Fluid Flow, 1996
- Convection patterns in a triangular domainInternational Journal of Heat and Mass Transfer, 1995
- Prandtl number effects on laminar mixed convection heat transfer in a lid-driven cavityInternational Journal of Heat and Mass Transfer, 1992
- Heat transfer by steady laminar free convection in triangular enclosuresInternational Journal of Heat and Mass Transfer, 1982