DPM in fluent

June 12, 2003, 00:15

I am trying to run DPm with kE model in fluent 6.0. For a size of coal with diameter day 2 mm, with the inlet and the outlet bioundary conditions specified, whatever may be the number of time steps I give the particle trajectories are incomplete. The particle particle interactions and the effect of turbulent fluctuations of the fluid on the particle were not considered. the number of grids is as high as 10 lakhs.Why is it so.?

June 12, 2003, 01:17

Hi

1) your particle diameter is huge in comparison with the diameter that I have seen in other simmulations (usually less than 1.0E-04m), as result your particles have a high momentum.

2) increase the maximum number of time steps or increase the length scale.

have you teack the particle path??

Best regards

Alex Munoz

June 12, 2003, 01:46

I have tried both. It still doesn't work out. What to do?

June 12, 2003, 00:15	DPM in fluent	#1
R.Sripriya Guest Posts: n/a	I am trying to run DPm with kE model in fluent 6.0. For a size of coal with diameter day 2 mm, with the inlet and the outlet bioundary conditions specified, whatever may be the number of time steps I give the particle trajectories are incomplete. The particle particle interactions and the effect of turbulent fluctuations of the fluid on the particle were not considered. the number of grids is as high as 10 lakhs.Why is it so.?

June 12, 2003, 01:17	Re: DPM in fluent	#2
Alex Munoz Guest Posts: n/a	Hi 1) your particle diameter is huge in comparison with the diameter that I have seen in other simmulations (usually less than 1.0E-04m), as result your particles have a high momentum. 2) increase the maximum number of time steps or increase the length scale. have you teack the particle path?? Best regards Alex Munoz

June 12, 2003, 01:46	Re: DPM in fluent	#3
R.Sripriya Guest Posts: n/a	I have tried both. It still doesn't work out. What to do?

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