Urgent. CFD + Acoustics

vgrzv · May 25, 2016, 06:43

Hi all,

I'm working on 2d turbulent jet flow. I have to obtain a flow field using RANS + k-eps. Maybe some mesh adaptation required as well. Acoustic knowledge would be an advantage (Tam and Auriaul acoustic model)

Please let me know if you can help out.

aerospace84 · May 27, 2016, 08:47

have you never performed a simulation before?

ksingh · May 27, 2016, 12:21

Quote:

Originally Posted by vgrzv

Hi all,

I'm working on 2d turbulent jet flow. I have to obtain a flow field using RANS + k-eps. Maybe some mesh adaptation required as well. Acoustic knowledge would be an advantage (Tam and Auriaul acoustic model)

Please let me know if you can help out.

You can mail me on ksingh@tserc.infor further discussion

Workshop Technologies · May 28, 2016, 06:28

Hi vgrzv,

I learned from your problem that you need to perform two simulations, one with RANS while another with k-epsilon model. in both the simulations, you need to do acoustic as well.

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Regards,
Workshop Technologies

Quote:

Originally Posted by vgrzv

Hi all,

I'm working on 2d turbulent jet flow. I have to obtain a flow field using RANS + k-eps. Maybe some mesh adaptation required as well. Acoustic knowledge would be an advantage (Tam and Auriaul acoustic model)

Please let me know if you can help out.

aerospace84 · May 30, 2016, 02:28

please...don't say strange things...Rans simulations are the same of k-eps...
RANS means Reynolds Averaged Navier-Stokes and to be solved you need to solve the turbolence, and to do it, you need turbolence equations like k-eps or k-w and so on...so he doesn't need two simulations...if you have to sell something please at least be informed..

Workshop Technologies · May 30, 2016, 04:57

Hi Luke,

I was referring to DNS (Direct Numerical Simulation). This was a human error.

Sorry for the inconvenience caused, if any.

Quote:

Originally Posted by aerospace84

please...don't say strange things...Rans simulations are the same of k-eps...
RANS means Reynolds Averaged Navier-Stokes and to be solved you need to solve the turbolence, and to do it, you need turbolence equations like k-eps or k-w and so on...so he doesn't need two simulations...if you have to sell something please at least be informed..

aerospace84 · May 30, 2016, 05:27

ookkay!

have a nice day!

mattlevins · July 26, 2016, 14:57

Hi,

Please email me at ml02534@georgiasouthen.edu with the details and I can take a look. I have experience modeling acoustic noise from wind turbine rotors.

Regards

mattlevins · July 26, 2016, 14:58

**ml02534@georgiasouthern.edu**

krishna13j · August 15, 2016, 18:29

Hi there,

Sounds like an interesting task.

Just for a deeper insight, is it an ejector effect you need to study?? Does get tricky if the outlet BC is not properly modelled.

You could ping me on: krishna.grive13@gmail.com if you still need a solution.

Best Regards.

May 25, 2016, 06:43	Urgent. CFD + Acoustics	#1
vgrzv New Member Join Date: Nov 2015 Posts: 5 Rep Power: 10	Hi all, I'm working on 2d turbulent jet flow. I have to obtain a flow field using RANS + k-eps. Maybe some mesh adaptation required as well. Acoustic knowledge would be an advantage (Tam and Auriaul acoustic model) Please let me know if you can help out.

May 30, 2016, 02:28		#5
aerospace84 New Member Luke Join Date: Nov 2012 Location: italy Posts: 24 Rep Power: 13	please...don't say strange things...Rans simulations are the same of k-eps... RANS means Reynolds Averaged Navier-Stokes and to be solved you need to solve the turbolence, and to do it, you need turbolence equations like k-eps or k-w and so on...so he doesn't need two simulations...if you have to sell something please at least be informed.. D.B likes this.

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May 27, 2016, 08:47		#2
aerospace84 New Member Luke Join Date: Nov 2012 Location: italy Posts: 24 Rep Power: 13	have you never performed a simulation before?

May 30, 2016, 05:27		#7
aerospace84 New Member Luke Join Date: Nov 2012 Location: italy Posts: 24 Rep Power: 13	ookkay! have a nice day!

July 26, 2016, 14:57		#8
mattlevins New Member Matt Levins Join Date: Nov 2014 Posts: 17 Rep Power: 11	Hi, Please email me at ml02534@georgiasouthen.edu with the details and I can take a look. I have experience modeling acoustic noise from wind turbine rotors. Regards

July 26, 2016, 14:58		#9
mattlevins New Member Matt Levins Join Date: Nov 2014 Posts: 17 Rep Power: 11	ml02534@georgiasouthern.edu

August 15, 2016, 18:29		#10
krishna13j New Member cfd_guy Join Date: Apr 2014 Location: Munich, Germany Posts: 21 Rep Power: 12	Hi there, Sounds like an interesting task. Just for a deeper insight, is it an ejector effect you need to study?? Does get tricky if the outlet BC is not properly modelled. You could ping me on: krishna.grive13@gmail.com if you still need a solution. Best Regards.