Jay Vaghela - Academia.edu (original) (raw)
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Papers by Jay Vaghela
Meccanica
The hydromagnetic instability of a stratified horizontal layer of viscous compressible rotating f... more The hydromagnetic instability of a stratified horizontal layer of viscous compressible rotating fluid through porous media in the presence of vertical magnetic field is considered. The solution has been obtained through the use of variational principle. The dispersion relation is derived for a layer having exponential density stratification along the vertical direction. It is found that viscosity has stabilizing influence while permeability of porous medium, magnetic resistivity and coriolis forces have destabilizing influence on the system.
The gravitational instability of infinitely extending homogeneous rotating plasma permeated by an... more The gravitational instability of infinitely extending homogeneous rotating plasma permeated by an oblique magnetic field is considered. The solution has been obtained through the normal mode technique and dispersion relation has been derived. It is shown that Jeans' criterion remains unchanged in the present problem. The dispersion relation obtained has been solved numerically and it has been found that the Coriolis forces and viscosity have a stabilizing influence while Hall current and magnetic resistivity have destabilizing influence on the growth rate of the unstable mode of disturbance.
Meccanica
The hydromagnetic instability of a stratified horizontal layer of viscous compressible rotating f... more The hydromagnetic instability of a stratified horizontal layer of viscous compressible rotating fluid through porous media in the presence of vertical magnetic field is considered. The solution has been obtained through the use of variational principle. The dispersion relation is derived for a layer having exponential density stratification along the vertical direction. It is found that viscosity has stabilizing influence while permeability of porous medium, magnetic resistivity and coriolis forces have destabilizing influence on the system.
The gravitational instability of infinitely extending homogeneous rotating plasma permeated by an... more The gravitational instability of infinitely extending homogeneous rotating plasma permeated by an oblique magnetic field is considered. The solution has been obtained through the normal mode technique and dispersion relation has been derived. It is shown that Jeans' criterion remains unchanged in the present problem. The dispersion relation obtained has been solved numerically and it has been found that the Coriolis forces and viscosity have a stabilizing influence while Hall current and magnetic resistivity have destabilizing influence on the growth rate of the unstable mode of disturbance.