Flow simulation of vortex street behind a cylinder

Ramnik · June 23, 2009, 07:36

I have tried doing this on FLUENT and i am getting a decent result.
But can please anyone suggest me the best solver to be used in such a case.

Ramnik · June 23, 2009, 07:38

AND after i have generated the frames how can i convert them into a video format...The MPEG option in the playback window plays it very fast and there is no option to modify the frame rate...so please help with this if anyone can

vishyaroon · June 23, 2009, 10:35

For generating a video, have you tried Windows movie maker? I had a similar problem (though I was not using Fluent for that simulation). I exported the images after every iteration and then compiled the animation in Windows movie maker. You can adjust the time per image and time between images. This can slow down your animation as you need.

Ramnik · June 24, 2009, 06:33

Hey thanks vishyaroon...
1) Actually i had tried that but there too u cannot get a animation with synchronized time lines...

2)What solver had u..and at what reynolda no are u working on??

vishyaroon · June 24, 2009, 09:29

Well I have not worked with the vortex shedding behind a cylinder for a long time now. The simulations for which I use Microsoft Movie Maker were usually internal flows with Re < 20,000 (VOF related problems, particle depositions, internal flows in ribbed passages etc).

June 23, 2009, 07:36	Flow simulation of vortex street behind a cylinder	#1
Ramnik New Member Ramnik Singh Join Date: Jun 2009 Location: Stuttgart, Germany Posts: 18 Rep Power: 17	I have tried doing this on FLUENT and i am getting a decent result. But can please anyone suggest me the best solver to be used in such a case.

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June 23, 2009, 07:38		#2
Ramnik New Member Ramnik Singh Join Date: Jun 2009 Location: Stuttgart, Germany Posts: 18 Rep Power: 17	AND after i have generated the frames how can i convert them into a video format...The MPEG option in the playback window plays it very fast and there is no option to modify the frame rate...so please help with this if anyone can

June 23, 2009, 10:35		#3
vishyaroon Senior Member Aroon Join Date: Apr 2009 Location: Racine WI Posts: 148 Rep Power: 18	For generating a video, have you tried Windows movie maker? I had a similar problem (though I was not using Fluent for that simulation). I exported the images after every iteration and then compiled the animation in Windows movie maker. You can adjust the time per image and time between images. This can slow down your animation as you need.

June 24, 2009, 06:33		#4
Ramnik New Member Ramnik Singh Join Date: Jun 2009 Location: Stuttgart, Germany Posts: 18 Rep Power: 17	Hey thanks vishyaroon... 1) Actually i had tried that but there too u cannot get a animation with synchronized time lines... 2)What solver had u..and at what reynolda no are u working on??

June 24, 2009, 09:29		#5
vishyaroon Senior Member Aroon Join Date: Apr 2009 Location: Racine WI Posts: 148 Rep Power: 18	Well I have not worked with the vortex shedding behind a cylinder for a long time now. The simulations for which I use Microsoft Movie Maker were usually internal flows with Re < 20,000 (VOF related problems, particle depositions, internal flows in ribbed passages etc).