Radiation effects on natural convection laminar flow from a horizontal circular cylinder


Autoria(s): Molla, M. M.; Saha, S. C.; Khan, M. A. I.; Hossain, M. A.
Data(s)

01/06/2011

Resumo

The effect of radiation on natural convection flow from an isothermal circular cylinder has been investigated numerically in this study. The governing boundary layer equations of motion are transformed into a non-dimensional form and the resulting nonlinear systems of partial differential equations are reduced to convenient boundary layer equations, which are then solved numerically by two distinct efficient methods namely: (i) implicit finite differencemethod or the Keller-Box Method (KBM) and (ii) Straight Forward Finite Difference Method (SFFD). Numerical results are presented by velocity and temperature distribution of the fluid as well as heat transfer characteristics, namely the shearing stress and the local heat transfer rate in terms of the local skin-friction coefficient and the local Nusselt number for a wide range of surface heating parameter and radiation-conduction parameter. Due to the effects of the radiation the skin-friction coefficients as well as the rate of heat transfer increased and consequently the momentum and thermal boundary layer thickness enhanced.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/44113/

Publicador

Desalination Publications

Relação

http://eprints.qut.edu.au/44113/1/44113A.pdf

DOI:10.5004/dwt.2011.1870

Molla, M. M., Saha, S. C., Khan, M. A. I., & Hossain, M. A. (2011) Radiation effects on natural convection laminar flow from a horizontal circular cylinder. Desalination and Water Treatment, 30, pp. 89-97.

Direitos

Copyright 2011 Desalination Publications

Fonte

Faculty of Built Environment and Engineering; School of Engineering Systems

Palavras-Chave #091307 Numerical Modelling and Mechanical Characterisation #Natural convection #Radiation-conduction interaction #Finite difference method #Horizontal circular cylinder
Tipo

Journal Article