Flow a couple-stress fluid through an annular curvilinear channel with one semi-porous wall

• Autorzy: Jurczak P. , Walicka A. , Walicki E. , Michalski D.
• Konferencja: Third International Conference on Engineering Rheology, ICER 2005
• Języki publikacji: EN

Abstrakty

EN

The flow of a couple -stress fluid in an annular curvilinear channel with a porous insert is considered. The porous insert is connected with a inner impermeable rotating surface which approaches the outer fixed surface of an annular curvilinear channel. The equations of motion governing of the flow reduce to the coupled Reynolds and Poisson equations which can be uncoupled by using the Morgan-Cameron approximation and closed-form solution can be obtained. Expressions for the pressure distribution in a channel clearance are given. As an example the flow through the channel modelled by two concentric spherical surfaces is discussed.

Słowa kluczowe

EN

annular curvilinear channel; couple stress fluid; pressure distribution

PL

hydromechanika; ciśnienie płynu; materiał porowaty

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2005
• Tom: Vol. 10, no spec
• Strony: 11--18
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Jurczak P.

• University of Zielona Góra, Department of Mechanics, 65-246 Zielona Góra, ul. Szafrana 2, POLAND

autor

Walicka A.

• University of Zielona Góra, Department of Mechanics, 65-246 Zielona Góra, ul. Szafrana 2, POLAND

autor

Walicki E.

• University of Zielona Góra, Department of Mechanics, 65-246 Zielona Góra, ul. Szafrana 2, POLAND

autor

Michalski D.

• University of Zielona Góra, Department of Mechanics, 65-246 Zielona Góra, ul. Szafrana 2, POLAND

Bibliografia

• [1] Jurczak P. (2005): Influence ofthe Lubricant Kind on Mechanical Parameters of Thrust Bearings With a Porous Inserts (in Polish). - PhD Thesis, University of Zielona Góra.
• [2] Morgan V.T. and Cameron A. (1957): Mechanismus of lubrication in porous metal bearing. - Proc. Conf. on Lubrication and Wear, Inst. Mech. Eng., London, pp. 151-157.
• [3] Stokes V.K. (1966): Couple-stresses in fluids. - Phys. Fluids, vol.9, No.9, pp. 1709-1715.
• [4] Walicka A. (2002a): Rheodynamics of Non-Newtonian Fluids in Straight and Curved Channels (in Polish). - Zielona Góra: University Press.
• [5]Walicka A. (2002b): Rotational Flows of the Rheologially Complex Media in Thin Annular Channels (in Russiai Zielona Góra: University Press.
• [6] Walicki E. (2005): Theory of Lubrication (in Polish). - Zielona Góra: University Press.