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49个回答 . 4人已关注