Comparative study of standard k-ε and k-ω turbulence models by giving an analysis of turbulent natural convection in an enclosure

被引:2
|
作者
Miroshnichenko, Igor [1 ]
Sheremet, Mikhail [2 ]
机构
[1] Tomsk State Univ, Dept Theoret Mech, Tomsk 634050, Russia
[2] Tomsk Polytech Univ, Inst Power Engn, Tomsk 634050, Russia
关键词
D O I
10.1051/epjconf/20158201057
中图分类号
O414.1 [热力学];
学科分类号
摘要
Turbulent natural convection in a square cavity has been numerically studied. The mathematical model has been formulated in terms of the dimensionless stream function, vorticity and temperature using two standard turbulence models (k-epsilon and k-omega). For an obtaining of more accurate values of governing parameters close to the walls a special coordinate transformation has been used. Formulated partial differential equations along with the corresponding boundary conditions have been solved by the finite difference method. It has been shown that standard k-epsilon model is more accurate for the considered problem.
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页数:4
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