A numerical study of the flow and heat transfer by natural convection and surface radiation in a tall partitioned cavity is performed in the present work. The left part (glazed cavity) is filled with air $(\mathrm{Pr}=0.71)$ while the right part is filled with water $(\mathrm{Pr}=7)$. The two cavities are separated by a thin, rigid partition absorbing a solar flux $\text{S}$ ranging from 0 to $1000\text{W}/\text{m}²$. The right (inner) surface of the cavity is maintained at the temperature ${\text{T}}_{\text{i}}=20°\text{C}$, while the left one (outer) is maintained at the temperature ${\text{T}}_{\text{o}}$ ranging from 0 °C to 50 °C. The horizontal surfaces are assumed to be adiabatic. Such a geometrical configuration and boundary conditions are chosen to model the flow and heat transfer in a water Trombe wall. A detailed examination of $\text{S}$ and ${\text{T}}_{\text{o}}$ effects on the flow and heat transfer in such a structure is the subject of this study. The main obtained results show that the flow structure in water and air can be similar or completely different depending on the mentioned parameters. Two values of the emissivity of the air cavity surfaces are considered $\epsilon =0$ and $\epsilon =1$ to study the effect of surface radiation. Two correlations giving the outer and inner heat fluxes ${\text{Q}}_{\text{o}}$ and ${\text{Q}}_{\text{i}}$ as a function of $\text{S}$ and ${\text{T}}_{\text{o}}$ are developed.

在目前的工作中，通过自然对流和表面辐射对高分隔腔中的流动和传热进行了数值研究。左侧部分（釉腔）充满空气$(\mathrm{压力}=0.71)$ 而右边的部分装满了水 $(\mathrm{压力}=7)$. 两个空腔被一个吸收太阳能通量的薄而刚性的隔板隔开$\text{秒}$ 范围从 0 到 $1000\text{宽}/\text{米}²$. 型腔的右（内）表面保持在该温度${\text{吨}}_{\text{一世}}=20°\text{C}$，而左边的（外部）保持在温度 ${\text{吨}}_{\text{○}}$范围从 0 °C 到 50 °C。水平表面被假定为绝热的。选择这样的几何配置和边界条件来模拟水 Trombe 壁中的流动和传热。详细检查$\text{秒}$ 和 ${\text{吨}}_{\text{○}}$对这种结构中流动和传热的影响是本研究的主题。主要获得的结果表明，根据上述参数，水和空气中的流动结构可以相似或完全不同。考虑了气腔表面的两个发射率值$\epsilon =0$ 和 $\epsilon =1$研究表面辐射的影响。给出外部和内部热通量的两个相关性${\text{问}}_{\text{○}}$ 和 ${\text{问}}_{\text{一世}}$ 作为一个函数 $\text{秒}$ 和 ${\text{吨}}_{\text{○}}$ 被开发。