DPM Injections

ABK

Hi

I am running DPM simulation using KE model, segregated solver, two way coupled calculation and Stochastic model.

I have had problems with convergence so have set the Max no. of steps to 10000 and a length scale of 0.00001. Also I have increased the continious phase calculations per DPM to 1000. Is this too high and what are the physical implications (if any) of doing so?

I specify a 1000 particles as a group in the injections menu however when I run fluent it is only recognising half this amount: "Number Tracked=500 Number Escaped= 500......"

and error message: "Unable to locate injection-0, number 500 Unable to locate injection-0, number 501 Unable to locate injection-0, number 502 Unable to locate injection-0, number 503.........."

When I try a surface injection at the inlet it only recognises 2 particles. Does anyone have any suggestions?

Additionaly I have noticed that the residuals increase dramitically at the point of injection and then fall again until the the next one, is there a minimum number of injections that the solution has to process for the result to be accurate as I have had a converged solution after just 1 injection previously.

Thanks in advance