Applied Scientific Research, Section A

, Volume 14, Issue 1, pp 25-30

First online:

Steady flow of a maxwell fluid in a porous cylindrical annulus with circular cross-section

  • D. K. Mohan RaoAffiliated withDepartment of Applied Mathematics, Indian Institute of Science

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When a fluid with memory is injected into any flow region some assumptions regarding the initial state of stress have to be made in order to determine the state of stress at any subsequent instant. For a Maxwell fluid, it is assumed that the fluid near the surface of injection is suddenly stressed and responds by starting flow in accordance with the mechanical model chosen. The flow of a Maxwell fluid with a single relaxation time has been determined under the above assumption in the following two cases: (i) annulus between two porous concentric circular cylinders, and (ii) space between two porous and infinitely extending parallel plates. The nature of flow in the present case is similar to that of the Reiner-Rivlin fluids obtained by Narasimhan2).