Fluid Mechanics

What is shear force in fluid particle?

Questions by vijay m   answers by vijay m

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  • Feb 13th, 2010

Shear stress in the fluid is also termed as viscosity of the fluid which is defined as the resistance offered by the fluid for the movement of one layer of fluid over another  adjacent layer of fluid.

For example:
when two layers of a fluid with a distance apart, move one over the other at different velocities, the top layer causes a shear stress on the lower layer of the fluid and the lower layer causes a shear stress on the adjacent top layer. 


  • Feb 13th, 2012

For newtonian fluids Shear force(T) is directly proportional to velocity gradient(du/dx).
T = mu*du/dt . Where mu is the coefficient of viscosity..

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nrj yadav

  • May 23rd, 2012

The forces acting along the plane of fluid or perpendicular to the longitudinal axis of fluid particle will be called as shear force.

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