﻿ 密度分层液膜沿线性加热斜面流动稳定性

# 密度分层液膜沿线性加热斜面流动稳定性The Stability of Density Stratified Liquid Film Flowing Down a Linear Heated Inclined Plate

Abstract: The flow and heat transfer in stratified liquid film falling down a linear heated inclined plate are described by the N-S equations, and the corresponding mathematical models are established. Then the governing equations and their boundary conditions of the small perturbation are derived. The equations are solved by the perturbation method, and then the expression of dispersion relation is obtained and analyzed. At last the effects of different factors on the stability of the film are discussed using numerical simulation. The stratification effect is not obvious, the liquid flow is stable. And the liquid film flow is instability because of linear heating.

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