Abstract
A numerical analysis of turbulent regimes of the natural convection in a closed rectangular region with heat-conducting walls of finite thickness was carried out in the presence of a locally concentrated heat source under the conditions of the radiative-convective heat exchange with the ambient medium on one of the external boundaries. The mathematical model was constructed on the basis of the Reynolds equations in dimensionless variables stream function - vorticity vector - temperature. Special attention was paid to the investigation of the influence of the Grashof number er 108≤Gr<1010, of the unsteadiness factor 0< τ <1000, and the thermal conductivity ratio λ2,1 = 5.7·10-4, 6.8·10-5 on both the local and integral characteristics of the problem.
| Original language | English |
|---|---|
| Pages (from-to) | 107-121 |
| Number of pages | 15 |
| Journal | Thermophysics and Aeromechanics |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Mar 2011 |
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Keywords
- conjugate heat transfer
- local heat source
- natural convection
- numerical modelling
- rectangular region
- turbulence
ASJC Scopus subject areas
- Radiation
- Nuclear and High Energy Physics
Cite this
Mathematical simulation of conjugate turbulent natural convection in an enclosure with local heat source. / Sheremet, M. A.
In: Thermophysics and Aeromechanics, Vol. 18, No. 1, 01.03.2011, p. 107-121.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mathematical simulation of conjugate turbulent natural convection in an enclosure with local heat source
AU - Sheremet, M. A.
PY - 2011/3/1
Y1 - 2011/3/1
N2 - A numerical analysis of turbulent regimes of the natural convection in a closed rectangular region with heat-conducting walls of finite thickness was carried out in the presence of a locally concentrated heat source under the conditions of the radiative-convective heat exchange with the ambient medium on one of the external boundaries. The mathematical model was constructed on the basis of the Reynolds equations in dimensionless variables stream function - vorticity vector - temperature. Special attention was paid to the investigation of the influence of the Grashof number er 108≤Gr<1010, of the unsteadiness factor 0< τ <1000, and the thermal conductivity ratio λ2,1 = 5.7·10-4, 6.8·10-5 on both the local and integral characteristics of the problem.
AB - A numerical analysis of turbulent regimes of the natural convection in a closed rectangular region with heat-conducting walls of finite thickness was carried out in the presence of a locally concentrated heat source under the conditions of the radiative-convective heat exchange with the ambient medium on one of the external boundaries. The mathematical model was constructed on the basis of the Reynolds equations in dimensionless variables stream function - vorticity vector - temperature. Special attention was paid to the investigation of the influence of the Grashof number er 108≤Gr<1010, of the unsteadiness factor 0< τ <1000, and the thermal conductivity ratio λ2,1 = 5.7·10-4, 6.8·10-5 on both the local and integral characteristics of the problem.
KW - conjugate heat transfer
KW - local heat source
KW - natural convection
KW - numerical modelling
KW - rectangular region
KW - turbulence
UR - http://www.scopus.com/inward/record.url?scp=79961141072&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79961141072&partnerID=8YFLogxK
U2 - 10.1134/S0869864311010124
DO - 10.1134/S0869864311010124
M3 - Article
VL - 18
SP - 107
EP - 121
JO - Thermophysics and Aeromechanics
JF - Thermophysics and Aeromechanics
SN - 0869-8643
IS - 1
ER -