Steady flow of a viscous incompressible fluid between two co-axial circular cylinders with suction and injection |
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Authors: | A. Raptis J. P. Mani S. Prasad |
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Affiliation: | (1) Dept. of Mathematics, University of Ioanniya, 45110 Ioanniya, Greece;(2) Mechanical Engineering Department, M.M.M. Engineering College, 273010 Gorakhpur, U.P., India;(3) K.N.I.T., 228118 Sultanpur, U.P., India |
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Abstract: | ![]() In the present paper an attempt has been made to study the steady flow of a viscous incompressible fluid between two co-axial circular cylinders with small outward and inward normal suction on the outer and inner cylinders respectively with the assumption that the pressure is uniform over a cross-section. The expressions for axial velocity, the volume of fluid flowing per unit time across a cross-section and components of stress at any point of the fluid are derived.
Stationäre Strömung einer zähen, inkompressiblen Flüssigkeit zwischen zwei koaxialen Kreiszylindern bei Absaugen und Ausblasung Zusammenfassung Es wird die stationäre Strömung eines zähen, inkompressiblen Fluids zwischen zwei koaxialen Kreiszylindern mit geringer Absaugung oder Ausblasung sowohl am Innen- wie am Außenzylinder unter der Annahme gleichförmiger Druckverteilung über jeden Querschnitt untersucht. Die Beziehungen für die Axialgeschwindigkeit, der Fluidstrom über jeden Querschnitt und die Spannungskomponenten in jedem Punkt des Fluidfeldes werden hergeleitet. Nomenclature density of the fluid - x axial coordinate - y radial coordinate - azimuthal coordinate - u axial velocity - v radial velocity - w azimuthal velocity - p pressure - coefficient of viscosity - kinematic viscosity - a radius of the inner cylinder - b radius of the outer cylinder - v 0 suction velocity on the inner cylinder - v 0 suction velocity on the outer cylinder =suction parameter for the inner cylinder =suction parameter for the outer cylinder =dimensionlessy coordinates Q=discharge per unit time |
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