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通过建立一组瞬态的流、固、热全耦合方程组,对浸出过程中浸堆内的温度、氧相对浓度、目的金属离子浓度等分布进行数值模拟.分析结果表明:沿堆体斜坡边界处氧的浓度较大,而在堆的中央部分,氧气的浓度非常小,导致这部分区域浸出反应缓慢;沿浸堆边坡处的温度偏低,温度最高的部分在底部区域附近靠近边坡位置处,且温度升高值超过6℃;矿堆底部靠近边坡区域目的金属离子浓度最高.本文的数学建模与数值模拟方法对研究城市风暴潮洪水演进过程具有指导意义.图4,表1,参9.
Through the establishment of a set of transient coupled equations of flow, solid and heat, the distribution of temperature, relative concentration of oxygen and concentration of metal ions in the leaching reactor during leaching process are numerically simulated. The analysis results show that: Oxygen concentration is high, and in the central part of the reactor, the concentration of oxygen is very small, resulting in a slow leaching reaction in this part of the area. The temperature along the slope of the submerged slope is low and the temperature is highest near the bottom near the slope And the temperature rise value is more than 6 ℃ .The concentration of metal ions in the bottom of the mine near the slope is the highest.Mathematical modeling and numerical simulation methods in this paper are instructive to study the evolution of storm surge in urban areas.Figure 4, 1, reference 9.