CHEMKIN Error-Matrix of Partial Derivatives might be Singular

MRaza · June 2, 2019, 04:24

Hello,

I am trying to simulate ignition delay of n-decane in ChemKin Pro (Closed homogeneous model) using this mechanism (DOI: 10.1021/acs.energyfuels.6b02186) but it fails to run every time with the following error;

TASK INTERRUPTED: TROUBLE IN THE TRANSIENT SOLVER DDASPK
THE MATRIX OF PARTIAL DERIVATIVES MAYBE SINGULAR

Any help in dealing with this error would be appreciated.

Thank you

Regards,
MRaza

Deep_Shit · May 12, 2020, 15:51

Use Legacy Solution Setting In Solver. In encountered when I included heat loss from wall using convective coefficient, thermal mass.

June 2, 2019, 04:24	CHEMKIN Error-Matrix of Partial Derivatives might be Singular	#1
MRaza New Member Mohsin Raza Join Date: Jun 2017 Posts: 6 Rep Power: 9	Hello, I am trying to simulate ignition delay of n-decane in ChemKin Pro (Closed homogeneous model) using this mechanism (DOI: 10.1021/acs.energyfuels.6b02186) but it fails to run every time with the following error; TASK INTERRUPTED: TROUBLE IN THE TRANSIENT SOLVER DDASPK THE MATRIX OF PARTIAL DERIVATIVES MAYBE SINGULAR Any help in dealing with this error would be appreciated. Thank you Regards, MRaza

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May 12, 2020, 15:51		#2
Deep_Shit New Member Deepak Join Date: May 2020 Posts: 1 Rep Power: 0	Use Legacy Solution Setting In Solver. In encountered when I included heat loss from wall using convective coefficient, thermal mass.