SAGE solver

mohsinmkhan · March 9, 2019, 13:15

should we provide approximate combustion duration for sage solver to solve ?

MFGT · March 18, 2019, 02:48

Hi,

you should to speed up you simulation, as SAGE is computionally expensive.
Typical are ranges from IGN timing up to EVO, when looking at the cylinder only.

If you expect reactions prior to spark, you can set it earlier. Since there is a cutoff temp defined, any cell below 600K (default setting) wont use SAGE anyway.

Also dont forget to make SAGE region specific if you are not interested in post combustion reactions and emissions in exhaust ports.

March 9, 2019, 13:15	SAGE solver	#1
mohsinmkhan Member mohsin Join Date: Dec 2018 Posts: 52 Rep Power: 7	should we provide approximate combustion duration for sage solver to solve ?

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March 18, 2019, 02:48		#2
MFGT Senior Member Tobias Join Date: May 2016 Location: Germany Posts: 264 Rep Power: 10	Hi, you should to speed up you simulation, as SAGE is computionally expensive. Typical are ranges from IGN timing up to EVO, when looking at the cylinder only. If you expect reactions prior to spark, you can set it earlier. Since there is a cutoff temp defined, any cell below 600K (default setting) wont use SAGE anyway. Also dont forget to make SAGE region specific if you are not interested in post combustion reactions and emissions in exhaust ports.