一种多组分分离级联的数值计算方法

摘要

The calculation method for multicomponent square cascades was proposed .The method was based on the difference in the iteration sequence and iteration approach ,and the mixing scheme of materials at stages was used as a constraint condition of the convergence . Numerical calculations indicate that the results obtained by the method and other methods were consistent .The method was very stable ,and its convergence accuracy was independ-ent of the initial iteration abundance ,the cascade length and the overall separation factor . In addition ,the method can be generalized to calculating complex cascades such as square cascade with additional flows ,square-off cascade and multi-layer cascade .%本文提出一种计算多组分矩形级联的数值计算方法，该算法以迭代序列差迭代为基础，通过各级物料混合达到收敛。数值计算表明，该方法与其他算法的结果吻合性好，具有很好的收敛性，且其最终收敛精度不依赖初始丰度，不受级联长度的影响，与基本全分离系数大小无关。此方法可以推广到带附加流、阶梯型或多层级联等更复杂的级联计算。