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3 International Journal of Applied Mechanics and Engineering

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Effect of rotation on ferrofluid based squeeze film of various shapes between two annular plates

Shah R. C.

International Journal of Applied Mechanics and Engineering

2007

Vol. 12, no 2

515-525

This paper studied the ferrofluid squeeze film, formed when the upper annular rotating plate of various shapes (viz. secant, exponential and flat) approaches the lower flat annular one normally. Expressions for pressure, load capacity and response time are obtained for a constant transverse magnetic field in each case. The results show that load capacity and response time are found to increase when the volume fraction of the particles and rotation of the upper plate increased for alI shapes of the upper plate. In the case of curvature of the upper plate, load capacity and response time are found to increase with the increase of curvature of the exponential upper plate but decreased for the secant shaped plate.

Magnetic fluid pressure on fingering phenomenon through homogeneous porous media

Shah R. C.

International Journal of Applied Mechanics and Engineering

2004

Vol. 9, no 3

613-618

This paper studied theoretically the net effect of pressure and the consequences arising due to the addition of a layer of a magnetic fluid to the fingering phenomenon through homogeneous porous media by comparing the model with the conventional one.

Magnetic fluid based porous inclined slider bering with velocity slip

Shah R. C., Bhat R.

International Journal of Applied Mechanics and Engineering

2003

Vol. 8, no 2

331-336

A theoretical study was made of a porous inclined slider with a magnetic fluid as lubricant considering velocity slip. Expressions were obtained for pressure, load capacity, friction on the moving slider, the coefficient of friction and the position of the centre of pressure. Computed values showed that load capacity and friction decreased when the slip parameter increased. The coefficient of friction attains an optimum for a certain value of the slip parameter which affects a little the position of the centre of pressure.