Aspen Plus回归模型参数无法收敛? 液液相平衡数据有了,回归nrtl模型参数总是出现下面错误: ** error while executing drs case: "r-20" : ]" w# e2 s }2 ^9 r drs results do not agree with three-phase flash results. * j9 p' b0 a% f! [8 h3 i3 r4 g* t - rerun with a different set of parameter initial values - recheck the data in the data-group paragraphs + y: c3 ? i0 s5 ^2 b' v - check std-dev for specifications that are too large *** severe error while executing drs case: "r-20" ! g/ e' `! i' h( r flash calculations failed to converge in 100 iterations. flash calculations failed to converge in maximum number of iterations. $ d6 z$ t# }( a# h* u ! data regression completed with errors 请问怎么办 ( i- g7 g8 w ?! o! c" w5 ]& a y 如何设置参数初值,初值的设定对于回归结果有影响么? 如附件所示,求大神支招! 查看更多