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simulate the temperature of an expanding gas in laval nozzle
Posted Jun 1, 2012, 3:37 a.m. EDT Fluid & Heat, Heat Transfer & Phase Change 2 Replies
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hi,
is it possible to simulate the temperature of an expanding gas? I have an ideal gas which flows thourg a laval nozzle and I need to know the temperature when the gas is expanding because then it is possible to have velocities >Mach=1.
But if I use the "convection and conduction" and set the temperature in boundary settings, it contains constant. So I think comsol doesn't solve the temperature because of the expanding gas but only the transfer of the temperature through the gas. So I wonder if it is generally possible to simulate the temperature decay of the expanding gas.
is it possible to simulate the temperature of an expanding gas? I have an ideal gas which flows thourg a laval nozzle and I need to know the temperature when the gas is expanding because then it is possible to have velocities >Mach=1.
But if I use the "convection and conduction" and set the temperature in boundary settings, it contains constant. So I think comsol doesn't solve the temperature because of the expanding gas but only the transfer of the temperature through the gas. So I wonder if it is generally possible to simulate the temperature decay of the expanding gas.
2 Replies Last Post Jun 1, 2012, 5:20 a.m. EDT
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Posted:
1 decade ago
Hi
I believe so, but it's not something I have tried, there must be other out here that can answer.
It must certainly be easier in the new V4, with the new CFD and HT enhancements
--
Good luck
Ivar
I believe so, but it's not something I have tried, there must be other out here that can answer.
It must certainly be easier in the new V4, with the new CFD and HT enhancements
--
Good luck
Ivar
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Posted:
1 decade ago
ok thanks,
next week I get a 2 weeks testversion of the 4.2a version. I hope this is enough time to get some useful results. Because I think with 3.5 it is not possible, but maybe it is with the new CFD-module
next week I get a 2 weeks testversion of the 4.2a version. I hope this is enough time to get some useful results. Because I think with 3.5 it is not possible, but maybe it is with the new CFD-module