Analysis of plane Couette flow using micropolar fluid theory

• Autorzy: Kim Y. J.
• Konferencja: Second International Tribology Conference
• Języki publikacji: EN

Abstrakty

EN

In this study, fluid flow behavior in microchannel is examined because of its relevance to the design and development of micro-devices. Previous research has indicated that micropolar fluid theory may provide a better model of fluid flow in microfluidic devices than classical Navier-Stokes theory. An analysis of the plane Couette flow between two parallel plates of a viscous, incompressible, micropolar fluid is presented. The effects of non-zero values of micro-gyration vector and pressure gradient on the flow fields and skin friction are studied. Numerical results of velocity profiles of micropolar fluids are compared with the corresponding flow problems for a Newtonian fluid. Analytical results show that the skin friction increases by increasing the parameter of micro-gyration vector on the wall (n), and decreases by increasing values of micropolar parameter (b). It is also seen that the value of couple stress coefficient decreases as the model parameter (m) increases.

Słowa kluczowe

EN

plane Couette flow; micropolar fluid; micro-gyration; skin friction; couple stress

PL

przepływ Couette'a; płyn mikropolarny; tarcie

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2002
• Tom: Vol. 7, Spec. is
• Strony: 73--79
• Opis fizyczny: Bibliogr. 9 poz., wykr.

Twórcy

autor

Kim Y. J.

• School of Mechanical Engineering, SungKyunKwan University, 300 Cheoncheon-dong, Suwon 440-746, KOREA

Bibliografia

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• [3] Beskok A. and Karniadakis G. (1994): Simulation of heat and momentum transfer in complex microgeometries. - J. of Thermophysics and Heat Transfer, vol.8, pp.647-655.
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• [5] Schlichting H. (1970): Boundary Lxiyer Theory. - New York: McGraw-Hill.
• [6] Jiang X.N., Zhou Z.Y., Yao J., Li Y. and Ye X.Y. (1995): Micro-fluid flow in microchannel. - Proc. Transducers ‘95, Stockholm, Sweden, pp.317-320.
• [7] Yager P.P. and Brody P. (1996): Low Reynolds number microfluidic devices. - Proc. Solid-State Sensor and Actuator Workshop, Hiltonhead, pp. 105-108.
• [8] Papautsky I., Brazzle J., Ameel T.A. and Frazier A.B. (1999): Laminar fluid behavior in microchannels using micropolar fluid theory. - Sensors and Actuators, vol.73, pp.101-108.
• [9] Rees D.A.S. and Bassom A.P. (1996): The Blasius boundary-layer flow of micropolar fluid. - Int. J. lingng. Sci., vol.34, No.l, pp.113-124.