Discussion Forum

Hello everyone,

I am trying to simulate the natural frequencies of a micropipette when it's filled with liquids. So far, I have used Fluid structure interaction physics plus solid mechanics physics to do the analysis. However, when I run the simulation I get weird shapes and error messages. The results show that the natural frequency of the fluid filled piepete is the same as the eigen frequency of the pipette without fluid. But this does not make sense, because resonance frequency should decrease when fluid is introduced because of the added mass of the fluid. Can anyone tell me as to what simulation steps should be used? What conditions should be used? Can anyone share a model (as a benchmark model) to show how these types analysis need to be done? I browsed through the blog, but, there seems to be no model to touch upon this topic.

-Sankha