Thermal Radiation Effects on Heat and Mass Transfer over an Unsteady Stretching Surface

Stanford Shateyi and Sandile Sydney Motsa

Mathematical Problems in Engineering, 2009, vol. 2009, 1-13

Abstract:

The unsteady heat, mass, and fluid transfer over a horizontal stretching sheet has been numerically investigated. Using a similarity transformation the governing time-dependent boundary layer equations for the momentum, heat, and mass transfer were reduced to a sets of ordinary differential equations. These set of ordinary differential equations were then solved using the Chebyshev pseudo-spectral collocation method, and a parametric analysis was carried out. The study observed, among other observations that the local Sherwood number increases as the values of the stretching parameter ð ´ and the Schmidt number 𠑆 ð ‘ increase. Also the fluid temperature was found to be significantly reduced by increases in the values of the Prandtl number 𠑃 ð ‘Ÿ , the unsteadiness parameter ð ´ , and the radiation parameter ð ‘… . The velocity and concentration profiles were found to be reduced by increasing values of the unsteadiness parameter ð ´ .

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:965603

DOI: 10.1155/2009/965603

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