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November 28, 2013, 02:14
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Erosion Due to Cavitation
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#1 |
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New Member
Nijanthan Thinakaran
Join Date: Jul 2013
Posts: 15
Rep Power: 12  |
Hi to everbody out there,
Hi folks i would lik to model Erosion which s caused due to cavitation in fluent 14 or in 14.5, can anybody plz help me out how to model tis case. i searched for some tutorials files online bt didnt get any. am in need of it so badly. 
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December 9, 2013, 05:59
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#2 |
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Senior Member
Rick
Join Date: Oct 2010
Posts: 1,016
Rep Power: 26 |
Hi,
send me a pm with your email if you are interested and I'll send you a simple tutorial about dpm erosion (water + sand). I cannot upload here as it exceeds the maximum file size. Daniele |
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December 9, 2013, 07:48
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#3 |
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New Member
Nijanthan Thinakaran
Join Date: Jul 2013
Posts: 15
Rep Power: 12 |
hello Daniele,
thanks for ur reply. Acutally my problem is i wanna know how to model erosion which is caused because of fluid flow. u r suggesting me to model a erosion which s caused because of sand particle. let me mak it simple for u. coz of fluid flow in a cylinder there may erosion tak place. i want to model tat erosion caused by the liquid on the solid surface ok. Hope so u got it. my mail id is nijaanthan@gmail.com. |
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December 9, 2013, 09:33
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#4 |
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Senior Member
Rick
Join Date: Oct 2010
Posts: 1,016
Rep Power: 26 |
Sorry,
I didn't read well your post. Daniele |
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December 10, 2013, 02:20
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#5 |
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New Member
Nijanthan Thinakaran
Join Date: Jul 2013
Posts: 15
Rep Power: 12 |
So is there any chance of modelling that problem in fluent????
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December 10, 2013, 11:53
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#6 |
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Senior Member
Join Date: Jan 2010
Location: Germany
Posts: 268
Rep Power: 17 |
off course: start a cavitation simulation then post process the criterion for the erosion due to gas bubbles collapse frequency
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December 11, 2013, 01:25
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#7 |
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New Member
Nijanthan Thinakaran
Join Date: Jul 2013
Posts: 15
Rep Power: 12 |
Thank u Zaktatir.
I would like to know how to post process for erosion? Am interested in knowing only abt the erosion which is happenning in my domain. So how do i do tat? Can i get any reference if possible??? |
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December 11, 2013, 12:06
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#8 |
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Senior Member
Join Date: Jan 2010
Location: Germany
Posts: 268
Rep Power: 17 |
look for papers about that and ask your support for examples. I saw this yesterday hot to make it. You need the criterion of erosion and carry out the rayleigh-plesset modeling of cavitation nothing more (okay cavitation may be very numerical tricky and expensive time steps)
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December 11, 2013, 12:07
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#9 |
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Senior Member
Join Date: Jan 2010
Location: Germany
Posts: 268
Rep Power: 17 |
you need implement the criterion in order to calculate the erosion rate
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March 10, 2014, 01:39
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#10 |
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New Member
Join Date: Feb 2014
Posts: 3
Rep Power: 12 |
hi all, I want to calculate the particle trajectory in a valve. I have got the converger result of gas flow field inside. But when I added DPM into it, some error happened. Error: Floating point error: invalid number.
Are there some special issue to be noticed when using DPM? The point Properties： diameter 0.0001m, Temp 500K, velocity 1m/s, total flow rate 0.1kg/s. The max NO. of steps is 1000. Courant number is 0.1. So what's the problem may be? Thanks a lot |
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