Numerical Study on Double-Diffusive Convection in a Stratified Trapezoidal Enclosure

J. Ocean Eng. Technol. 1992;6(2):143-150.

성층화된 사다리꼴 용기내에서의 이중확산유동에 관한 수치해석

현명택

제주대학교 기관공학과

Keywords: Double-Diffusive Convection, Combined Buoyancy, Flow Pattern, Buoyancy Ratio, Cell, Interface, Layered Flow

핵심용어: 이중확산유동, 복합부력, 유동형태, 부력비 셀, 인접면, 층을 이룬 유동, 정체층

Abstract

Numerical simulation is made of a stably stratified salt-water solution due to lateral heating in an equilateral trapezoidal enclosure using boundary-fitted coordinate in grid generation.
Results
show four types of the global fluid pattern depending on the buoyancy ratio in the enclosure, i.e., unicell flow pattern for the low buoyancy ratio, layered flow pattern for the increasing buoyancy ratio, layered flow pattern with stagnant zone for the relatively high buoyancy ratio and stagnant flow pattern for the much higher buoyancy ratio.