Drag force of a porous particle moving axisymmetrically in a closed cavity of micropolar fluid

• Autorzy: Madasu Krishna Prasad

Identyfikatory

DOI

10.17512/jamcm.2019.4.04

• Języki publikacji: EN

Abstrakty

EN

The present paper deals with the problem of an incompressible axisymmetric creeping flow caused by a porous spherical particle in a spherical cavity filled with micropolar fluid. Depending on the kind of cell model, appropriate boundary conditions are used on the surface of sphere and spherical cavity. Drag force on the porous particle in the presence of a cavity is calculated to determine the correction factor to the Stokes law. A general expression for the hydrodynamic force acting on the porous sphere and, hence, for the wall correction factor of the sphere are obtained. The special cases of the porous sphere in viscous fluid, zero permeability solid sphere in micropolar fluid and viscous fluid are obtained in open and closed cavity respectively.

Słowa kluczowe

EN

micropolar fluid; Stokes flow; sphere; concentric; drag force

PL

płyn mikropolarny; prawo Stokesa; siła tarcia; siła hydrodynamiczna; przepływ pełzający

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Journal of Applied Mathematics and Computational Mechanics
• Rocznik: 2019
• Tom: Vol. 18, nr 4
• Strony: 41--51
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Madasu Krishna Prasad

• Department of Mathematics, National Institute of Technology, Raipur-492010 Chhatisgarh, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).