Numerical simulation of natural convection in wedge-shaped domain with isothermal free surface

The contribution deals with 2D laminar unsteady natural convection in a wedge-shaped reservoir model induced by the isothermal surface heating of a water basin being colder than surrounding atmosphere. The problem formulation considered corresponds to large-scale convection development during a clou...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 929; no. 1; pp. 12097 - 12102
Main Authors Yaroslavtseva, N A, Ivanov, N G
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2017
Subjects
Boundary conditions
Convection heating
Domains
Free convection
Free surfaces
Mathematical models
Physics
Solar radiation
Two dimensional models
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Summary:The contribution deals with 2D laminar unsteady natural convection in a wedge-shaped reservoir model induced by the isothermal surface heating of a water basin being colder than surrounding atmosphere. The problem formulation considered corresponds to large-scale convection development during a cloudy day when the solar radiation impact is negligible. Numerical simulation was performed using an in-house Navier-Stokes code SINF. The focus of the paper is on the accurate resolution of the initial period of the convective circulation pattern development. The dependence of the predicted convective structures on the computational domain size as well as on the boundary condition at the free surface is analysed. The influence of geometry on the buoyancy-induced flow formation is discussed.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/929/1/012097