aspen 回归模型参数无法收敛怎么办? 液液相平衡数据有了,回归nrtl模型和unifac模型参数是出现下面错误: ** error while executing drs case: "r-20" drs results do not agree with three-phase flash results. - rerun with a different set of parameter initial values - recheck the data in the data-group paragraphs - check std-dev for specifications that are too large *** severe error while executing drs case: "r-20" flash calculations failed to converge in 100 iterations. flash calculations failed to converge in maximum number of iterations. ! data regression completed with errors 请问怎么办 如何设置参数初值,初值的设定对于回归结果有影响么?查看更多