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Modelling heat transfer in gas under injection
Posted 19 lug 2017, 03:23 GMT-4 Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD) 0 Replies
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I am using Comsol V5 and I'm trying to simulate gas storage in cavities. The problem is on a lab scale, so it's a cylindrical model of 1m height and 0.36m diameter with temperature gradient on it's upper and lower boundaries, I then will be injecting fluid from a nozzle at the top.
On the license I am using, I have the packages of laminar flow and heat transfer in fluid (nitrogen in this case). I've been trying to simulate the pressure increase due to injection and the temperature profile development. I don't have the CFD package, I have been able to retrieve the experimental average pressure profile, but the temperature profile is way below the experimental results. While investigating that, I have noticed that if I use isolated boundaries for heat q=0, the temperature doesn't increase at all due to increasing pressure, obviously, there's no term of p in the energy equation?
However, in real gas behaviour T increases with p, do you have any suggestions? Do you think I can simulate that with these packages or I have to have the CFD package? What can I do to make T increase with p?
Attached is a simplified mesh version of my model .mph
Thanks in advance
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Hello Franck Edwad
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