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Magnetohydrodynamic flow; Laplace transformation; Hall current; point/line heat source.

The influence of a point heat source and Hall current on the laminar hydromagnetic free convective flow of an incompressible and electrically conducting viscous liquid between two vertical walls has been studied. A wavelet function is utilised to mathematically formulate the point or line heat source. The incidental equations on the flow have been processed subject to the Boussinesq approximation. A unified analytical solution of basic equations like thermal energy and momentum has been derived by employing Laplace transform technique. The impacts of the pertinent physical parameters, such as Hall parameter, magnetic field and point heat source, on the velocity field are explained graphically. The valuable result from the investigation is that an increase in the length of the point heat source leads to the enhancement of the velocity profiles. Moreover, it is noticeable that an enhancement of Hall current has a direct connection with the primary factor of the volumetric flow rate and skin friction.

NAVEEN DWIVEDI ASHOK KUMAR SINGH

Published

7 October 2020

Manuscript received

25 January 2020

Manuscript revised

16 June 2020

Accepted

3 July 2020

Final version published online

7 October 2020