Modeling of pulsation wave in a pulsation bottle

arindam · November 21, 2014, 19:11

Hello Guys

I wanted to model a pulsation bottle used at the suction end of a reciprocating compressor. Now the inlet flow is hermonic and I wanted to model the pulsation generated inside the bottle.

I am wondering if fluent would allow you to solve the problem in frequency domain, since the inlet flow has only one frequency, which corresponds to the RPM of the compressor.

I am guessing I can do a time transient solution to capture the wave for may be 2-4 time period, but I wanted to avoid doing a transient solution, as I want the result fairly quickly.

Any comments would be appreciated.

Thanks

LuckyTran · November 22, 2014, 01:47

If you want to solve in the frequency domain, you need a spectral solver. Unfortunately Fluent is a space-time solver.

arindam · November 24, 2014, 16:37

Quote:

Originally Posted by LuckyTran

If you want to solve in the frequency domain, you need a spectral solver. Unfortunately Fluent is a space-time solver.

Do you know any spectral solver which can do this sort of simulation?

November 21, 2014, 19:11	Modeling of pulsation wave in a pulsation bottle	#1
arindam New Member Arindam Singha Join Date: Apr 2014 Posts: 8 Rep Power: 12	Hello Guys I wanted to model a pulsation bottle used at the suction end of a reciprocating compressor. Now the inlet flow is hermonic and I wanted to model the pulsation generated inside the bottle. I am wondering if fluent would allow you to solve the problem in frequency domain, since the inlet flow has only one frequency, which corresponds to the RPM of the compressor. I am guessing I can do a time transient solution to capture the wave for may be 2-4 time period, but I wanted to avoid doing a transient solution, as I want the result fairly quickly. Any comments would be appreciated. Thanks

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November 22, 2014, 01:47		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,674 Rep Power: 65	If you want to solve in the frequency domain, you need a spectral solver. Unfortunately Fluent is a space-time solver.