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Showing results 1 to 19 of 19 Search took 0.00 seconds. Search: Posts Made By: thecfduser

Forum: FLUENT April 27, 2010, 19:23

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi it have been a long time that i have not... Hi it have been a long time that i have not been connected and it is just now that i saw ure message Why do u need to know if ure flow is turbulent???? flow with a free interface are less stable...

Forum: FLUENT February 15, 2010, 13:56

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi my friend thanks for ure comment I am... Hi my friend thanks for ure comment I am sorry, but i dont know how to model such cases with phase change... All what i can tell u is: 1-ure problem is so complex, and to choose a suitable model,...

Forum: FLUENT February 14, 2010, 13:49

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser No problem If u tell me more about ure problem,... No problem If u tell me more about ure problem, maybe i can help. Do u know a priori the granulometry (size distribution) of ure spary?

Forum: FLUENT February 13, 2010, 20:13

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi i dont know this topic very very well but: ... Hi i dont know this topic very very well but: 1-a big problem with VOF is artificial coalescence: in a cell u have 1 interface only, wich mens that if 2 droplets are close with a distance<cell...

Forum: FLUENT February 7, 2010, 12:03

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi i had a lot of problems with exceed and... Hi i had a lot of problems with exceed and fluent on Vista turn to Xp

Forum: FLUENT January 29, 2010, 17:39

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser U must do it in Gambit. U can define different... U must do it in Gambit. U can define different regions. In fluent u can do it too but i have never tried it. I will try to take a look to it (u can search on fluent user's manual)

Forum: FLUENT January 29, 2010, 17:37

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hello hoper welcome to our discussion ... Hello hoper welcome to our discussion Simulating laminar multiphase flow in pipes is not so much complex since we can do a DNS. The problem arises from the turbulence in such flows: they are much...

Forum: FLUENT January 29, 2010, 17:25

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi yes my holidays was good but too long :) i... Hi yes my holidays was good but too long :) i hope that u enjoyed ure time too If u are using a 1 inch diameter, i advice u to see the map of flox regimes made by taitel and duckler (1976). they...

Forum: FLUENT January 24, 2010, 18:20

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi i am back what is ure question?? u need to... Hi i am back what is ure question?? u need to determine the flow regime from the flow rates???

Forum: FLUENT December 17, 2009, 08:17

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser hi if u draw a line rake, u can PLOT a profile... hi if u draw a line rake, u can PLOT a profile on it and u can compare results on excel.(or in Fluent also if u want) so u can know if u reached steady and fully developped state For the questin...

Forum: FLUENT December 16, 2009, 16:05

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser hi no problem comrade u can ask me and i will... hi no problem comrade u can ask me and i will answer when i am here (if u have a lot of questions, try to ask it soon because when i go to holidays, i will not have internet) For the xy plot: u...

Forum: FLUENT December 16, 2009, 02:59

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser hi 1-plot--->xyplot--->velocity ... hi 1-plot--->xyplot--->velocity 2-plot--->xyplot--->unsteady statistics (it will appear after that u do ure time average) 3-yes did u finish ure first simulation???

Forum: FLUENT December 15, 2009, 06:58

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser hello again i will speak in english if u say... hello again i will speak in english if u say that u understand me :) u must do some segments (surface-->line) that are orthogonal to the x axis in different locations, then plot the mean xvelocity...

Forum: FLUENT December 14, 2009, 16:00

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi my friend 1- as i explained before, u choose... Hi my friend 1- as i explained before, u choose the flowrates of each phase: Qg and Ql. Qg=alpha*V*S Ql=(1-alha)*V*S So u have 2 eqs. and 2 unkowns that are V and alpha, that u must give to...

Forum: FLUENT December 10, 2009, 13:31

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi thanks very much for the articles 1-For a... Hi thanks very much for the articles 1-For a single inlet: u know ure gas and liquid flow rate. In fluent, u must give it those same flow rates but in specifying one velcity and a volume fraction...

Forum: FLUENT December 8, 2009, 14:23

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi again for the papers mail it for me please... Hi again for the papers mail it for me please (cfduser@live.fr) and thanks in advance 1-I would prefer that u dont divide the inlet in 2 parts...In fact, imagine that the real water height in the...

Forum: FLUENT December 8, 2009, 03:33

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser i have seen the paper u are talking about....I... i have seen the paper u are talking about....I dont remember it very much but i think that they just performed cacultion for stratified flow no??? I will give u some hints for ure work anf if u...

Forum: FLUENT December 8, 2009, 02:51

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser yes i understand a bit what do u want, but i mean... yes i understand a bit what do u want, but i mean what is the objectif? u want to know if ure flow is fully developped?????? if yes tell me , if no correct me. Anyway friend, i hope that u are...

Forum: FLUENT December 7, 2009, 15:06

Replies: 47 2 phase flow (3D) Views: 9,221 Posted By thecfduser Hi I am working on the same topic using VOF,... Hi I am working on the same topic using VOF, so i hope we can have some little useful discussions:) About ure question, i didnt understand what do u want to plot...but anyway, no need for...

Showing results 1 to 19 of 19

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