Hello everyone,
I am simulating a reacting flow with a rather fast reaction. This problem does not converge, and I found out that I should try an auxiliary sweep with a parameter in front of the reaction rate that is increased step by step using last steps solution as initial guess.
For the first step this is working perfectly, I get a good solution for 1/1000 of the reaction rate. But after the first step the study stops and does not continue with the next step. Anybody has an idea what I am doing wrong?
Here is what I entered so far:
I checked auxiliary sweep in my stationary solution and added the parameter (which i before defined in global definitions as 1[1].) I chose Specified combinations, gave a range of 4 steps and chose run continuation for last parameter (but it is the same for no parameter and then reuse solution yes)
under solver - stationary solver - parametric I did not change anything.
Any idea/help/hint? Thanks in advance!
Best regards,
Miriam
I am simulating a reacting flow with a rather fast reaction. This problem does not converge, and I found out that I should try an auxiliary sweep with a parameter in front of the reaction rate that is increased step by step using last steps solution as initial guess.
For the first step this is working perfectly, I get a good solution for 1/1000 of the reaction rate. But after the first step the study stops and does not continue with the next step. Anybody has an idea what I am doing wrong?
Here is what I entered so far:
I checked auxiliary sweep in my stationary solution and added the parameter (which i before defined in global definitions as 1[1].) I chose Specified combinations, gave a range of 4 steps and chose run continuation for last parameter (but it is the same for no parameter and then reuse solution yes)
under solver - stationary solver - parametric I did not change anything.
Any idea/help/hint? Thanks in advance!
Best regards,
Miriam