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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Print: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v6.i2.20
pages 95-104

NUMERICAL FLOW VISUALIZATION AND THERMAL TRANSPORT PHENOMENON OF BENARD CONVECTION IN A THIN LIQUID LAYER INDUCED BY EVAPORATION

Wen-Jei Yang
Department of Mechanical Engineering and Applied Mechanics University of Michigan, Ann Arbor, Michigan 48109-2125, U.S.A.

ABSTRACT

A numerical study is performed on heat transfer and fluid flow in natural convection in a very thin liquid layer induced by surface evaporation, irrespective of its being cooled below or adiabatic. The two-dimensional governing equations are discretized by means of a finite-difference technique and solved numerically. This study shows that (1) the flow structure and temperature distribution in the liquid layer are predicted; (2) the liquid layer consists of two strata: heat convection taking place in the upper stream and heat conduction taking place in the lower one; and (3) the wave motion appears in the upper liquid layer, and the fluid flow is stationary in the lower one.


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