• FLOW OF A VISCO-ELASTIC RIVLIN-ERICKSEN TYPE FLUID THROUGH A LONG UNIFORM RECTANGULAR DUCT WHEN AN IMPULSIVE PRESSURE GRADIENT ACTING AT THE CENTRAL PART OF A SECTION

ANIL TRIPATHI*

• FLOW OF A VISCO-ELASTIC RIVLIN-ERICKSEN TYPE FLUID THROUGH A LONG UNIFORM RECTANGULAR DUCT WHEN AN IMPULSIVE PRESSURE GRADIENT ACTING AT THE CENTRAL PART OF A SECTION

ANIL TRIPATHI*

Abstract

In the present paper the unsteady flow of the visco-elastic Rivlin-Ericksen type fluid through a long uniform rectangular duct, when an impulsive pressure gradient acting at the central part of a section has been studied. The analytical expressions for velocity profile and the flux have been determined by the application of Laplace integral transform. Some particular cases have also been discussed in detail.

Keywords

Viscosity, Unsteady flow, Visco-elastic fluid, Flux.

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