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Old   January 20, 2011, 18:02
Default Modelling Slurry flow
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My work is to use mixture model in multiphase flow to simulate slurry flow in straight pipe.The slurry is of water and 0.02476 in. sand particles(5 %). My simulation is not converging. I am not sure which drag functions and other functions to use. Has anyone simulated slurry flow with mixture model ? Please help .. or we should use eulerian model only ?
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Old   January 21, 2011, 12:00
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Nikolopoulos Aristeidis
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Use mixture model is the slip velocity between phases is small and not important.

Use Euler if not.

You are using an unsteady solver?
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Old   January 21, 2011, 12:15
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The slip velocity between particles is not important, I have unchecked that option. I need to find the pressure drop in the pipe.I am not getting covergence with Euler model too, I tried Schiller naumann drag function and also gidaspow model. I am not sure which options of drag function to select in mixture model. Have you any experience in modelling slurry flow in straight pipes ?
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Old   January 21, 2011, 12:17
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I am not using unsteady solver, I am using steady state solver .. Should I use unsteady state ?
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Old   January 21, 2011, 12:36
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I 'm experienced in Euler - Euler granular flows. I'm working in CERTH/ISFTA in EMMS scheme which is a sub-grid drag model.

I'm not familiar with mixture but i know its limitations.

For sure go to unsteady even if the physics of the problem is steady.
The only way to go steady is with these new pressure-velocity coupling schemes of Fluent 12 but i don't recommend them.
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Old   January 21, 2011, 12:44
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Thanks, I had treid the Euler model. But I am not getting convergence,I am not sure where I am going wrong. Can you help me look at my case file, if you can. I am stuck in this problem for last 1 week and I am not going any ahead. If I am able to simulate with Euler model, it will be some progress. Will be really gratefull if you can help me with eulerian model ? pls let me know if it is covenient with you ? Thanks for your help ?
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Old   October 28, 2014, 01:23
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Ngô Ích Sơn
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Dear Nikolopoulos,

I am coding the EMMS global using paper of W. Wang and J. Li (2007). I guess, your EMMS model is EMMS/matrix?

What value of eps_mf? I used 0.4

Can you suggest which value of convergence criteria for hydrodynamics should be suitable? (I am using 1e-3, but it is not converged for eps_g < 0.6)

Can you recommend how many step for each loop? (I am using 20(steps for eps_gc)x20(steps for eps_gf)x1(a_f = -9.8)x100 (for a_c))

Thank you and best regards,
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Old   January 18, 2017, 11:28
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Prateek Jain
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Hi, I'm working on modelling slurry flow through horizontal pipes. I can't converge it. Could anybody help? I've exhausted all my options :'(

Sent from my ONEPLUS A3003 using CFD Online Forum mobile app
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Old   January 19, 2017, 09:14
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Quote:
Originally Posted by sandisk View Post
My work is to use mixture model in multiphase flow to simulate slurry flow in straight pipe.The slurry is of water and 0.02476 in. sand particles(5 %). My simulation is not converging. I am not sure which drag functions and other functions to use. Has anyone simulated slurry flow with mixture model ? Please help .. or we should use eulerian model only ?
I did thesis on this, you can refer this link

http://dspace.thapar.edu:8080/jspui/handle/10266/2899
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Old   January 19, 2017, 09:19
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Quote:
Originally Posted by prateekj05 View Post
Hi, I'm working on modelling slurry flow through horizontal pipes. I can't converge it. Could anybody help? I've exhausted all my options :'(

Sent from my ONEPLUS A3003 using CFD Online Forum mobile app
I did thesis on this, you can refer this link

http://dspace.thapar.edu:8080/jspui/handle/10266/2899
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Old   September 11, 2018, 07:41
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Dear Kushal,


I looking for modelling of slurry flow, I have found you have work on it. Unfortunately your thesis link is not working. Kindly can you send me your thesis on my personal email id techbhaz@gmail.com.


Regards
Bhaskar
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Old   September 11, 2018, 08:47
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Kushal Puri
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[QUOTE=techbhaskar;706051]Dear Kushal,


I looking for modelling of slurry flow, I have found you have work on it. Unfortunately your thesis link is not working. Kindly can you send me your thesis on my personal email id techbhaz@gmail.com.


Regards
Bhaskar[/QUO

I sent to your mail id
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Old   May 6, 2019, 07:28
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Aashna Raj
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Quote:
Originally Posted by Kushal Puri View Post
I did thesis on this, you can refer this link

http://dspace.thapar.edu:8080/jspui/handle/10266/2899
Sir,
Your link is not working. Can you suggest me any way to view your thesis or if it's not too much, kindly send it to my email id: aashnaraj18@gmail.com


Thanks
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Old   September 23, 2019, 23:51
Post Thseis link not working
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ShreeJeeth
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Quote:
Originally Posted by Kushal Puri View Post
I did thesis on this, you can refer this link

http://dspace.thapar.edu:8080/jspui/handle/10266/2899

Can u send it to my id : iamsj18@gmail.com ?? Or can u update the link?
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mixture model, multiphase modelling, multiphase pressure drop, slurry flow

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