Air tank filling

gsr_132 · June 9, 2016, 00:48

Hi,
I am trying to simulate flow of air form a tank into another tank. There is only one flu8id involved i.e air. Source tank is of 30 litres in volume and at 6.5 bar pressure and other tank is of 385 cc in volume. it is transient simulation to understand the pressure rise in the smaller tank during flow.
This cannot be solved using VoF as the fluids are miscible and thus I was going for patching technique where I will patch the initial conditions to the bigger tank.
Kindly provide your valuable inputs for the methodology to be adopted.

gsr_132 · June 10, 2016, 04:16

Hi,
On going for patch option with 6.5 bar pressure and then simulating the run, I am getting pressure results of very low magnitude like 0.5 Pa. It seems this is not working as expected.
Kindly let me know how to solve the same.

June 9, 2016, 00:48	Air tank filling	#1
gsr_132 New Member Join Date: Jan 2014 Posts: 5 Rep Power: 12	Hi, I am trying to simulate flow of air form a tank into another tank. There is only one flu8id involved i.e air. Source tank is of 30 litres in volume and at 6.5 bar pressure and other tank is of 385 cc in volume. it is transient simulation to understand the pressure rise in the smaller tank during flow. This cannot be solved using VoF as the fluids are miscible and thus I was going for patching technique where I will patch the initial conditions to the bigger tank. Kindly provide your valuable inputs for the methodology to be adopted.

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June 10, 2016, 04:16		#2
gsr_132 New Member Join Date: Jan 2014 Posts: 5 Rep Power: 12	Hi, On going for patch option with 6.5 bar pressure and then simulating the run, I am getting pressure results of very low magnitude like 0.5 Pa. It seems this is not working as expected. Kindly let me know how to solve the same.