Stability of superposed couple-stress fluids in the presence of suspended particles in porous medium

• Autorzy: Sunil , Sharma R. C. , Chandel Rajender Singh
• Języki publikacji: EN

Abstrakty

EN

The stability of two superposed couple-stress fluids of uniform densities, permeated with suspended particles, in a porous medium is considered. A stability analysis is carried out and for mathematical simplicity we consider two highly viscous fluids of equal kinematic viscosities and equal couple-stress kinematic viscosities. The system is found to be stable for a potentially stable configuration under certain condition whereas a potentially unstable configuration remains unstable for the couple-stress fluid permeated with suspended particles in a porous medium. The growth rates of perturbation are found to be both increasing (for some wave numbers) and decreasing (for other wave numbers) with the increase in medium permeability.

Słowa kluczowe

EN

couple stress; suspended particles; porous medium; stability of superposed fluids

PL

materiałoznawstwo; analiza stabilności; płyn lepki; materiał porowaty

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2003
• Tom: Vol. 8, no 4
• Strony: 693--704
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Sunil

• Department of Applied Sciences National Institute of Technology Hamirpur (H.P.) - 177 005, INDIA

autor

Sharma R. C.

• Department of Mathematics Himachal Pradesh University Summer Hill, Shimla - 171 005, INDIA

autor

Chandel Rajender Singh

• Department of Mathematics Government Degree College Palampur (H.P.) - 176 061, INDIA

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