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Hydrogen filled shock-tube open to the atmosphere |
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#1 |
New Member
Tomás Costa
Join Date: Aug 2020
Posts: 4
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Hi,
I'm trying to modulate a shock tube with gas in the driver section, hydrogen and air in the driven section in fluent. I am studying if the length and diameter of the tube affects the pressure and temperature of the gas in order to see If there can be ignition. I have a rectangle with 2 sections, high-pressure hydrogen in the driver section separated by a diaphragm and atmospheric air in the driven section with 0 pressure gauge on the outlet. I am trying to do a pressure and temperature analysis but it seems to be giving wrong results because of the 2 different gases in the same structure. Can anybody help? |
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#2 |
Senior Member
Alexander
Join Date: Apr 2013
Posts: 2,363
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why do you think, you have wrong results?
pressure as well as concentration you are applying using PATCH tool so the difference with this model will be only concentrations of gases in specified regions
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#3 | |
New Member
Edward Gan
Join Date: Dec 2014
Posts: 2
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Quote:
Cheers, Edward |
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#4 |
New Member
Tomás Costa
Join Date: Aug 2020
Posts: 4
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I ended up by not doing the 0 pressure gauge because I thought it would happen what you are saying, the problem now is that when I run with 10 bar everything is ok and results print like expected from the calculated values but when i run with 20 bar on the driver section, i run it and the results print like i have to pressure in the driver or driven section as it appear as 0 Pa.
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Tags |
ignition, pressure, shock-tube, temperature |
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