In this paper, the temperature and concentration distributions in an insulated salinity gradient solar pond are studied numerically in transient regime. The dimensionless governing equations are solved by finite-volume method using SIMPLER algorithm with HYBRID scheme. The pond is filled with a mixture of salt and water to form three zones: upper convective zone (UCZ), non-convective zone (NCZ) and lower convective zone (LCZ). The vertical walls and the bottom of the pond are thermally insulated. The bottom of the pond is black painted. The simulation of the insulated salinity gradient solar pond shows the existence of salt diffusion from the bottom to the free surface. This numerical study shows also that the buoyancy ratio increases and decreases the temperature and concentration in the LCZ and in the UCZ, respectively.

中文翻译：

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绝缘盐度梯度太阳池中温度和浓度的数值分布

本文在瞬态状态下数值研究了绝缘盐度梯度太阳池中的温度和浓度分布。无量纲控制方程采用SIMPLER算法和HYBRID方案，通过有限体积法求解。池塘中充满了盐和水，形成三个区域：上部对流区（UCZ），非对流区（NCZ）和下部对流区（LCZ）。垂直壁和池塘底部是隔热的。池塘的底部是黑色的。绝缘盐度梯度太阳池的模拟表明盐从底部到自由表面的扩散存在。该数值研究还表明，浮力比分别提高和降低了LCZ和UCZ中的温度和浓度。