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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: thecfduser

Forum: FLUENT June 9, 2010, 20:29

Replies: 10 minimize time step, adapt region Views: 2,365 Posted By thecfduser Hi DNS is Direct Numerical simulation. It means... Hi DNS is Direct Numerical simulation. It means that u try to solve directly the Navier-Stokes equations without any modeling (no turbulence model). So DNS will give u the solution of the NS...

Forum: FLUENT June 8, 2010, 01:10

Replies: 10 minimize time step, adapt region Views: 2,365 Posted By thecfduser Yes, i mean is the experimental droplet size less... Yes, i mean is the experimental droplet size less then the mesh size???? for ure results, there is a way to show them on the forum (i dont know how) or send it to me via mail (Remember: DNS so ure...

Forum: FLUENT June 7, 2010, 18:48

Replies: 10 minimize time step, adapt region Views: 2,365 Posted By thecfduser ah Ok maybe the problem is because of VOF. ... ah Ok maybe the problem is because of VOF. Vof is the most used interface tracking method but have some liitations: artificial coalescence. I will explain to you: imagine that u have 2 droplets....

Forum: FLUENT June 7, 2010, 16:38

Replies: 10 minimize time step, adapt region Views: 2,365 Posted By thecfduser Hi why u dont run a DNS??? ure geometry is very... Hi why u dont run a DNS??? ure geometry is very small and ure flow is must be laminar. Use the laminar model of Fluent (DNS). So my adcices: use VOF with DNS. Geo-reconstruct. Verify that...

Forum: FLUENT June 6, 2010, 08:37

Replies: 10 minimize time step, adapt region Views: 2,365 Posted By thecfduser Hi if ure mesh is very fine (small cells), u... Hi if ure mesh is very fine (small cells), u will need smaller time steps to not violate the shannon-nyquist theorem. Rememebr that VOF also needs very small time steps. Advice: 1-Maybe ure mesh...

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