Abstract
Thermal radiation on oscillatory flow of a viscous incompressible fluid of an optically dense medium past a moving hot vertical plate under the influence of a time varying gravity field by using Rosseland approximation is investigated. Since the flow is characterised by a time varying gravity field, a g-jitter force is associated with microgravity field in space. In a g-jitter driven flow, the empty space above the leading edge of the medium corresponds to a crystal growth in space; the net mass flow rate in the system is zero. In a time varying gravity field, the flow is characterised by the oscillating velocity near the plate surface with reference to a phase angle and to increase the fluid velocity with increase in phase angle due to impulsive onset into motion. The effects of radiation parameter, Prandtl number and Grashof number on the velocity field are analysed. The effect of Nusselt number at the plate is discussed.
Highlights
In recent year, authors have been studied the concept of a controlled thermonuclear fusion reaction of the Sun in the presence of a magnetic mirror subject to a traveling magnetic field to deal with resonance with a decisive importance to a forced oscillation
The Sun is an exposure of a resonance to exerts its influence of a time varying gravity field with a decisive importance to a differential rotation of the Sun when a forced oscillation is taken into account
In relevance to the physical situation of interest it reveals that the significance of fluids with high Prandtl number determine high viscosity so that fluids move slowly with smaller value of Prandtl number which correspond to increasing thermal conductivity and heat generates to diffuse away from the heated surface and move rapidly than of higher value of Pr
Summary
Authors have been studied the concept of a controlled thermonuclear fusion reaction of the Sun in the presence of a magnetic mirror subject to a traveling magnetic field to deal with resonance with a decisive importance to a forced oscillation. In relevance to the physical situation of interest, the aim of a present investigation is to study of an extension of Stoke’s flow exerted by the time varying gravity field by employing Rosseland approximation. It lies in its application of designing a space craft propulsion system.
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