{"id":160890,"date":"2021-08-01T15:14:26","date_gmt":"2021-08-01T15:14:26","guid":{"rendered":"\/forum\/forums\/topic\/dasac-failure\/"},"modified":"2021-09-24T02:02:04","modified_gmt":"2021-09-24T02:02:04","slug":"dasac-failure","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dasac-failure\/","title":{"rendered":"dasac failure"},"content":{"rendered":"
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Hello everyone,<\/p>\n

I simulate gas-phase-reactions in a flow field within a tube using Fluent, DPM (with UDF for absorption) and chemkin import.<\/p>\n

The simulation is apparently on its way to convergence, but during some iterations (every second or third) some lines (20) with this message are written:<\/p>\n

dasac failure at Temperature = 335.62 K: Continuing…<\/p>\n

Those iterations take much more time and the printed temperatures is always lower then 500 K though the maximum temperature within the field is 1100 K. <\/p>\n

How can I indefinite the cause of this? I guess it is about some insufficient thermodynamic properties.<\/p>\n

Thank you for your help.<\/p>\n","protected":false},"template":"","class_list":["post-160890","topic","type-topic","status-closed","hentry","topic-tag-chemkin-mechanism","topic-tag-dasac-failure-1","topic-tag-fluent"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t