﻿ 特殊饱和液膜流动稳定性Orr-Sommerfeld方程求解及分析

# 特殊饱和液膜流动稳定性Orr-Sommerfeld方程求解及分析Solution and Analysis of Orr-Sommerfeld Equation of Flow Stability on Special Saturated Liquid Film

Abstract: The flow and heat transfer of the special saturated liquid film falling down an inclined heated plate were described by the N-S equation and the reasonable boundary condition. And the corresponding mathematical model was established, the relation between the surface tension and the fluctuation by nonlinear function on temperature was expressed. Then the Orr-Sommerfeld equation describing the flow stability of liquid film was obtained. Finally, the inertia force, heat capillary force, steam pressure and capillary pressure were analyzed about the influence on the flow stability.

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