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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v34.i6.50
pages 535-547

Hydromagnetic Flow Due to Eccentrically Rotating Porous Disk and a Fluid at Infinity

Mrinmoy Guria
Department of Applied Mathematics with Oceanology and Computer Programming, Vidyasagar University, Midnapore - 721102, West Bengal, India
B. K. Das
Department of Applied Mathematics with Oceanology and Computer Programming, Vidyasagar University, Midnapore - 721102, West Bengal, India

SINOPSIS

Hydromagnetic flow due to non-coaxial rotations of a porous disk and a fluid at infinity rotating about an axis passes through a fixed point in the presence of a uniform magnetic field is considered. An exact solution of the Navier-Stokes equations obtained for the velocity and temperature field when there is a uniform suction/blowing at the disk. It is seen that the main velocity component fy1 increases with increase in either magnetic parameter M2 or suction parameter S. On the other hand, the cross velocity component gy1 decreases with increase in either magnetic parameter or suction parameter. The flow has a boundary layer structure even in the presence of a blowing at the disk. It is observed that fy1 decreases while gy1 increases with increase in blowing parameter S1. This implies that blowing at the disk causes reduction in the cross velocity of the flow. The expressions of the force and the torque exerted by the fluid on the porous disk is also obtained and discussed for several values of suction/blowing parameter and magnetic parameter. It is seen that no torque is exerted by the fluid on the disk. It is found that temperature profile θ decreases with increase in suction parameter whereas it increases with increase in magnetic parameter.


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