Pawan Kumar Sharma

Research

Effect of Magnetic Field on Oscillatory Flow Past Parallel Plates in a Rotating System with Heat and Mass Transfer

Article September 4, 2014

This communication investigates the effect of magnetic filed on oscillatory flow with the combined effects of fluctuating heat and mass transfer past vertical parallel porous flat plates. It is assumed that vertical channel is rotating with angular velocity . The periodic suction velocity is assumed at the plate and other plate oscillating with periodic free stream velocity. The governing equations are solved by adopting complex variable notations. The analytical expressions for velocity and temperature fields are obtained using perturbation technique. The effects of various parameters on mean primary, mean secondary velocity, mean temperature, mean concentration, transient velocity, transient temperature, transient concentration and rate of heat and mass transfer in terms of amplitude and phase differences have been discussed and shown graphically.

Radiating Heat Transfer on Unsteady Free Convective Flow through Rotating Porous Medium with Fluctuating Heat Flux

Article November 5, 2013

This communication investigates the effect of radiating heat transfer on unsteady free convection flow past a vertical surface in a rotating porous medium. It is assumed that surface is rotating with angular velocity Ω. The variable heat flux is assumed on the vertical surface varies with time; the governing equations are solved by adopting complex variable notations. The analytical expressions for velocity and temperature fields are obtained. The effects of various parameters on mean velocity, mean temperature, transient velocity and transient temperature have been discussed and shown graphically.