Open AccessComputational and experimental study of 3D flow near the cube immersed in the turbulent free convection boundary layer on a vertical heated plate
Author(s) -
Yu. S. Chumakov,
Alexander M. Levchenya,
Е. М. Смирнов
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1675/1/012023
Subject(s) - turbulence , mechanics , boundary layer , reynolds averaged navier–stokes equations , reynolds stress , vortex , turbulence modeling , flow (mathematics) , adiabatic process , convection , materials science , physics , thermodynamics
Results of a coordinated computational and experimental study of time-averaged velocity and temperature fields in the vicinity of an adiabatic cube that is inserted into the turbulent free convection vertical-plate boundary layer are presented. The numerical simulation was based on the steady-state RANS approach using the k-ω SST turbulence model and a version of the differential Reynolds stress model (DRSM). The hot-wire technique was used for velocity measurements, simultaneously with temperature measurements by an accompanied “cold” wire. Two turbulence models produced similar vortex flow structures near the obstacle; however some important quantitative distinctions were observed. The velocity value profiles predicted for the middle vertical plane showed generally a good accordance with the hot-wire measurements carried out in this plane, especially in the DRSM case.