封闭空间自然对流换热在工程上有广泛的应用背景。由于边界层区和核心区相互耦合,使问题变得十分复杂。本文用低雷诺数形式的κ—ε模型对封闭空间紊流自然对流进行了数值研究。二维封闭空间的几何图形如图1所示。矩形左、右两侧面分别维持定壁温θ_H和θ_C Natural convection in enclosed space has a wide range of applications in engineering. The problem is complicated by the coupling of the boundary zone and the core zone. In this paper, we use the low Reynolds number form of κ-ε model to study the natural convection of closed space turbulence. Two-dimensional closed space geometry shown in Figure 1. Rectangular left and right sides were maintained at constant wall temperature θ_H and θ_C