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Model Synthetic Jet with Crossflow
Posted 13 feb 2012, 11:15 GMT-5 Fluid & Heat, Acoustics & Vibrations, Computational Fluid Dynamics (CFD), Microfluidics, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.1, Version 4.2, Version 4.2a 0 Replies
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I tried modeling in 2D using the turbulent flow k-epsilon model using time dependent study. The model consists of a cavity with an orifice expelling into quiescent flow. I assigned the bottom of the cavity with an inlet sinusoidal velocity boundary condition and the rest of the cavity was assigned wall BC. The quiescent surrounding air was assigned wall BC and the top was assigned to be an outlet.
The frequency of the velocity bc is 200Hz so I have the time study setup 0,2.5e-4, .1 and when I go to solve it the solution either does not converge or it just gets stuck trying to solve it moving at extremely small increments ~1*10-8.
I am new to comsol so if someone has any suggestions or alternate ways of doing this. I am particularly interested to see how it could be done using the acoustic model, however, I have no idea how i would begin to implement it once I want to use a crossflow.
Any and all suggestions welcome!
Thanks,
Aaron
Hello Aaron Sassoon
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