generating flow internally

Topics: 4.4, Fluid Flow

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Physical Ecology

Physical Ecology

June 12, 2014 6:22pm UTC

generating flow internally

I am trying to model a closed, recirculating flow chamber, similar to a real one that we have built in our lab. In real life, the flow is generated by a propeller that resides inside the closed chamber (see photo). The dynamics of the propeller are not important, so I just need to generate water movement in one part of the chamber (bottom, tube section) so I can observe the fluid behavior in another (top, rectangular section).

I have included my rough draft of the COMSOL model. I haven't closed the loop yet and am currently powering the flow with an inlet and outlet surface. I would like to close the chamber and power it from the inside.

Is there an example of some sort of internal pump that I might use as an example? I didn't see one in the library and the solutions I'm employing don't seem physically realistic.

Many thanks

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Tero Hietanen

Tero Hietanen

June 13, 2014 2:19pm UTC in response to Physical Ecology

Re: generating flow internally

Hi,

Here is modified version from your model. I closed loop and added "internal fan". Check if this is what you are looking for.

Best regards

Tero Hietanen

Attachments:   flume3d_laminar_withpump.mph  

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Physical Ecology

Physical Ecology

June 13, 2014 3:39pm UTC in response to Tero Hietanen

Re: generating flow internally

Tero Hietanen - A heartfelt thank-you for your efforts, this is perfect. I also appreciate the other "tweaks" that you added to the model. I am learning a lot.

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