# Water filtration

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 February 14, 2020, 19:07 Water filtration #1 New Member   Islam tlidjane Join Date: Feb 2020 Posts: 3 Rep Power: 2 Hello everyone I am new in simulation I need help to simulate water filtration in rotating cylindrical membrane Can anyone help me please?

 February 15, 2020, 07:24 Type of filtration #2 Senior Member     Vinerm Join Date: Jun 2009 Location: Nederland Posts: 539 Rep Power: 16 There are multiple types of water filtration. Which one is it that you are interested in? __________________ Regards, Vinerm PMs only for private content

 February 15, 2020, 08:22 #3 New Member   Islam tlidjane Join Date: Feb 2020 Posts: 3 Rep Power: 2 I want to simulate filtration of water and sand mixture in cylindrical rotating membrane (Taylor-Couette system)

 February 15, 2020, 11:32 Cylindrical Membrane? #4 Senior Member     Vinerm Join Date: Jun 2009 Location: Nederland Posts: 539 Rep Power: 16 If the membrane is cylindrical, simplest option would be to consider the membrane as a wall. Use DPM for particles and escape condition at the membrane for DPM. Do note if the particle volume fraction is more than 10%, you will have to use dense phase DPM. __________________ Regards, Vinerm PMs only for private content

February 15, 2020, 18:39
Filtration
#5
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Islam tlidjane
Join Date: Feb 2020
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Quote:
 Originally Posted by vinerm If the membrane is cylindrical, simplest option would be to consider the membrane as a wall. Use DPM for particles and escape condition at the membrane for DPM. Do note if the particle volume fraction is more than 10%, you will have to use dense phase DPM.
Can you explain more about the membrane
And thank you

 February 16, 2020, 05:28 Membrane #6 Senior Member     Vinerm Join Date: Jun 2009 Location: Nederland Posts: 539 Rep Power: 16 It would be expected that you have the answer to that since you are trying to simulate the filtration. For a simple scenario, since it is water and sand, the membrane could be a sieve with size smaller than the sand particles. But then you do not need a rotation; you can just pour the water over the filter and collect the water in a container below. The process could certainly be continuous. So, the rotational system would only be required if you design a membrane that allows sand particles to pass through but stop the water. The explanation I shared earlier pertains to this system. __________________ Regards, Vinerm PMs only for private content