The basic ideas of numerical simulation are listed as follows : first , the density distribution of the brine in salt cavern is gained ; then based on it , the dissolving speed of rock salt is calculated ; last , the three - dimensional development of salt cavern is simulated 模擬溶腔擴展的基本思路如下:首先需要得到巖鹽溶腔內鹵水的濃度分布:根據濃度,求解巖鹽的溶解速度;最后,計算溶腔隨時間的三維擴展。對在此基礎上建立的數學模型進行數值模擬,編制完成了擴展模擬程序。