Oscillating pressure-driven slip flow and heat transfer through an elliptical microchannel. (English) Zbl 1485.76028

Summary: This paper studies the transient slip flow and heat transfer of a fluid driven by the oscillatory pressure gradient in a microchannel of elliptic cross section. The boundary value problem for the thermal-slip flow is formulated based on the assumption that the fluid flow is fully developed. The semi-analytical solutions of velocity and temperature fields are then determined by the Ritz method. These solutions include some existing known examples as special cases. The effects of the slip length and the ratio of minor to major axis of the elliptic cross section on the velocity and temperature distribution in the microchannel are investigated.


76D05 Navier-Stokes equations for incompressible viscous fluids
76N15 Gas dynamics (general theory)
76R05 Forced convection
76R10 Free convection
Full Text: DOI


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