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How to find pressure drop in a micro rectangular pipe(silicon) ?

Posted 08.10.2015, 05:20 GMT-4 MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Microfluidics 1 Reply

Ramanathan Meyyappan
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I am new to COMSOL. I have to find the pressure drop. The parameters are width is 0.3mm and the length of the pipe is 40mm. The liquid is water and the inlet pressure is for example 100bar. i had designed the pipe and given the inlet pressure but couldn't find the pressure drop at the outlet. can someone help me out and let me know what and where i am doing wrong ?

Thanks in advance!!!
1 Reply Last Post 04.12.2015, 17:13 GMT-5
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Hello Ramanathan Meyyappan

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Jeff Hiller COMSOL Employee

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Posted: 9 years ago 04.12.2015, 17:13 GMT-5
Hello Ramanathan,
Typically these kinds of models are set up by specifying a velocity profile (or flow rate) at the inlet and setting the outlet to a gauge pressure. When the model's run, the difference between the pressure at the inlet and the pressure at the outlet is your pressure drop.
Best,
Jeff
Hello Ramanathan, Typically these kinds of models are set up by specifying a velocity profile (or flow rate) at the inlet and setting the outlet to a gauge pressure. When the model's run, the difference between the pressure at the inlet and the pressure at the outlet is your pressure drop. Best, Jeff

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