Experience in using a synthetic turbulence generator for eddy-resolving simulation of the free convection boundary layer on a vertical plate

The paper presents results of eddy-resolving numerical simulation of the turbulent free convection boundary layer that develops along a vertical isothermally heated plate. The problem of definition of boundary conditions at the computational domain inlet, where a time-varying flow field has to be sp...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1565; no. 1; pp. 12105 - 12111
Main Authors Kolesnik, E V, Smirnovsky, A A, Tschur, N A, Ivanov, N G, Smirnov, E M
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.06.2020
Subjects
Boundary conditions
Computational fluid dynamics
Free convection
Inlet flow
Physics
Simulation
Turbulence models
Turbulent boundary layer
Two dimensional boundary layer
Vortices
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Summary:The paper presents results of eddy-resolving numerical simulation of the turbulent free convection boundary layer that develops along a vertical isothermally heated plate. The problem of definition of boundary conditions at the computational domain inlet, where a time-varying flow field has to be specified, is considered. Mean characteristics of inflow are defined from results of RANS simulation of a 2D boundary layer, and a synthetic turbulence generator is used to introduce unsteady fluctuations at the inlet. Calculations are performed with an in-house unstructured finite-volume code; results of comparison with known experimental data are presented. The influence of the choice of the turbulence model used for RANS-based calculations of the mean inlet flow profiles is considered.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1565/1/012105