I am trying to simulate the entrainment of a discrete phase particle in Ansys Fluent. Essentially, the particles would enter a pipe containing water, and flow into a hole in the pipe, and become entrained, blocking it off. However, I can't seem to find examples of similar simulations to this. Is anyone aware of how I'd do this?
Hi Ethan McGrath ,
I have two ideas regarding your problem at the moment:
First, I think it maybe could be possible using die MPM Model which is an add-on module from ANYS Fluent, but it has many restrictions in other regards and may not fit your needs.
Second, maybe you could use a UDF together with the DPM model, you would have to write a momentum source term blocking of the flow through the pipe, when a particle of certain diameter blocks of the pipe. Also using some porous zone at the end of the pipe and setting a very high flow resistance parameter via UDF for this case should work in principle.
But maybe there are also some better ways I am not aware of atm.
Best regards
Christian
Hello,
You can try to simulate a multiphase flow using DPM (Discrete Particles Model) in Fluent ANSYS, and then set the injection of the particles. This approach allows you to track them and describe their behavior in the fluid domain. Also to define that the pipe contains water at t=0, you are invited to patch (a defined region) by a VF=1 of water when initializing the solution.
Some tutorials of hydrocyclones (fluid-solid), multi-phase particle simulations can be useful for your studied case.
Regards
Hi Safae Elmisaoui,
Thank you for your response. Just to clarify, when you stated that you can patch a defined region by a VF=1 of water when initializing the solution - could you give me some more detail on what you mean by this, and how it would help solve my problem? Is this a method of how I could simulate the 'blocking' of the pipe - by changing the volume fraction of water to zero after a particle becomes trapped?
Kind regards,
Ethan
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