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Showing results 1 to 14 of 14 Search took 0.00 seconds. Search: Posts Made By: AleDR

Forum: FLUENT November 5, 2009, 11:49

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Cyclone combustors?? But this sounds very... Cyclone combustors?? But this sounds very similar to the side project I'm working on!! And I guess your experience is much more than what I deserve! ;) Anyway I'm still trying to complete...

Forum: FLUENT November 5, 2009, 10:29

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Hi Neal! Thanks for your reply and don't... Hi Neal! Thanks for your reply and don't worry... in the meantime I was working on a side project for a swirl burner (...still RSM!)! And I'm trying to get OpenFOAM installed on an idle machine...

Forum: FLUENT October 28, 2009, 11:05

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Now as I checked the turbulence intensities in... Now as I checked the turbulence intensities in some time steps I found that the area-weighted average is really high... it oscillates on 150%! The prediction with the k-epsilon was even higher (as...

Forum: FLUENT October 28, 2009, 05:15

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Ok, so I was totally wrong! Now that I'm... Ok, so I was totally wrong! Now that I'm setting the pressure outlet b.c. I have other questions: 1. For the Gauge Pressure I set the same value of Static Pressure obtained though integration on...

Forum: FLUENT October 27, 2009, 11:04

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Hi Neal! Further iterations have not... Hi Neal! Further iterations have not settled yet mass flux balance, which appears to be quite erratic... http://i.imagehost.org/0545/Hist_k.jpg I am using a simple outflow condition on...

Forum: FLUENT October 22, 2009, 07:54

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Neal, As you suggested more than two weeks... Neal, As you suggested more than two weeks ago, maybe the latest iterations of the mixing station model show that the convergence difficulties I experienced on the steady state solution were due...

Forum: FLUENT October 9, 2009, 10:33

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Thank you, Neil... your replies are always very... Thank you, Neil... your replies are always very interesting and useful! Now I'm experiencing what you have predicted about the time step: the oscillations on the mass flow rate at the outlet are...

Forum: FLUENT October 8, 2009, 08:49

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR I'm trying to gather more detailed data through... I'm trying to gather more detailed data through time monitoring of pressure, velocities and turbulent kinetic energy in some points of the domain, but now I'm experiencing some problems with the...

Forum: FLUENT September 30, 2009, 12:05

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Thank you very much!! I will setup my case... Thank you very much!! I will setup my case now, so it will have all the night for running! Tomorrow I will be in Bergamo for the two days CAE Conference and so I will look at the calculation...

Forum: FLUENT September 30, 2009, 10:51

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR That's a very nice tip for postprocessing... That's a very nice tip for postprocessing results! So I think I will run my simulation with the proper setup in order to: -obtain an animation sequence for the PVC -collect pressure and...

Forum: FLUENT September 29, 2009, 11:31

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Thank you for your interesting reply, Neil! And... Thank you for your interesting reply, Neil! And for your suggested reading too. I really appreciate this. Actually, as you wrote, I am obtaining reverse flow warning and the axial velocity...

Forum: FLUENT September 29, 2009, 05:49

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Thank you Neil!! The improvements on... Thank you Neil!! The improvements on residuals and mass flux error are really impressive using the unsteady solver! I used 0.0005s as time step and 20 iterations/time step as you indicated and...

Forum: FLUENT September 29, 2009, 03:16

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Thank you very much, Neil! I'll put in... Thank you very much, Neil! I'll put in practice your advices since now and I'll let you know my improvements in my next posts! Bye bye!

Forum: FLUENT September 28, 2009, 06:40

Replies: 23 Mixing Station with high swirl Views: 9,898 Posted By AleDR Mixing Station with high swirl Hello to everybody in the forum! I'm quite new to this and I hope I'll be able to provide some help in future. But first I've got a problem... I'm trying to simulate a station for mixing...

Showing results 1 to 14 of 14

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