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(Solved): Couette flow of yield stress fluids Yield stress materials refer materials that do not flow if appl ...
Couette flow of yield stress fluids Yield stress materials refer materials that do not flow if applied stress is below the critical stress (yield
,\sigma _(y)stress), whereas they do flow if applied stress is above the critical stress. Consider a yield stress fluid that behaves as Newtonian fluid above the critical (yield) stress. Mathematical description for the yield stress fluids is
\sigma _(yx)=\sigma _(y) if \sigma _(yx)<\sigma _(y)
=\eta gradu_()
if \sigma _(yx)>\sigma _(y)Find the steady state velocity profile if the top plate is moving with a velocity of
U.
