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Posts: 1
Registered: ‎05-03-2012

Watertreatment process CFD question

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05-03-2012 09:13 AM


I am new chemical engineering student & I am relatively new in AutoCAD & CFD world, I have autocad & autodesk mechanical simulation. I have university task of designing 3 concrete tanks for Watertreament process both 2 of them have mechanical agitator (blade mixer) & the other contain (1-scraber -to scrub sludge- & 2-stainless steel plates with 55 degree angel inclination with 10 cm spacing between each plate). I want to know how should I consider the movment of in the agitator in autocad can I preset the rpm of the motors so it can give me different results in CFD? can I simulate water the have sand & clay particles knowing the size distrubution of the particles & density?


Please advise me of literatures, papers & tutorial that would help me in drawing specially the agitators & CFD ?






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Posts: 259
Registered: ‎06-14-2010

Re: Watertreatment process CFD question

05-03-2012 02:24 PM in reply to: moe.elbedawi

Use MRF(Multiple Rotating Frames of Reference) for the rotating agitator, beware of the assumptions using MRF no free surface with combing to MRF. 

Here is the direct link to ASIM-MP's wiki on Multiple Rotating Frames of Reference 



Jianhui Xie, Ph.D
Principal Engineer
MFG-Digital Simulation
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