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Home  >  Volume 22 (2012)

An Approximate Analytical Investigation of Couette Flow In Composite Channel by Basant K. Jha and M.L. Kaurangini Volume 22 (November, 2012), pp 461 – 464
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An approximate analytical solution is presented for fully developed unsteady Couette flow between parallel plates partially filled with fluid saturated porous material and partially filled with clear fluid. The Brinkman-Forchheimer extension of Darcy equation is utilized to model the flow in a porous region. The two regions are coupled by equating the velocity and shear stress at the interface. The result obtained is compared to those obtained from an implicit finite-difference solution of the corresponding time dependent flow problem. It can be seen that the time dependent flow solution yields almost same steady state values as obtained by using the approximate analytical solution.
Keywords: Couette flow, composite channel, interface