heating water in a bottle

bigred · August 21, 2009, 06:07

Is it possible to use openfoam to model the heating of water in a closed bottle with a certain amount of headspace? I would like to measure the temperature of the water and the resulting pressure in the bottle as the water changes to water vapour in the headspace. Any ideas?

Thanks.

sega · August 21, 2009, 06:20

Hi bigred.

I'm a little bit confused. What is a 'headspace'?
Did you mistyped 'heatspace' and are meaning (specific) 'heat capacity'?

bigred · August 21, 2009, 06:33

The headspace is the volume of gas above the liquid surface in a sealed bottle. for example, a cola bottle is filled to a certain amount and the space that is left (between the liquid and the cap) is a headspace of CO2.

Hope this clarifies things and thanks for the interest.

sega · August 21, 2009, 07:10

Hi bigred.

Sorry, I just wasn't sure but now everything is clear.
So you will need a multiphase solver which is capable of handling phase change due to evaporation.
I think there is an incompressible solver doing exactly this: interPhaseChangeFoam.

Have a look into this thread: http://www.cfd-online.com/Forums/ope...aporation.html

Hope this helps!

August 21, 2009, 06:07	heating water in a bottle	#1
bigred New Member Matthew Philpott Join Date: Aug 2009 Location: Belgium Posts: 24 Rep Power: 17	Is it possible to use openfoam to model the heating of water in a closed bottle with a certain amount of headspace? I would like to measure the temperature of the water and the resulting pressure in the bottle as the water changes to water vapour in the headspace. Any ideas? Thanks. __________________ CAELinux 2009 + OF1.5 Ubuntu 9.04 x64 (jaunty jackalope) + OF1.6

August 21, 2009, 06:20		#2
sega Senior Member Sebastian Gatzka Join Date: Mar 2009 Location: Frankfurt, Germany Posts: 729 Rep Power: 20	Hi bigred. I'm a little bit confused. What is a 'headspace'? Did you mistyped 'heatspace' and are meaning (specific) 'heat capacity'? __________________ Schrödingers wife: "What did you do to the cat? It's half dead!"

August 21, 2009, 06:33		#3
bigred New Member Matthew Philpott Join Date: Aug 2009 Location: Belgium Posts: 24 Rep Power: 17	The headspace is the volume of gas above the liquid surface in a sealed bottle. for example, a cola bottle is filled to a certain amount and the space that is left (between the liquid and the cap) is a headspace of CO2. Hope this clarifies things and thanks for the interest. __________________ CAELinux 2009 + OF1.5 Ubuntu 9.04 x64 (jaunty jackalope) + OF1.6

August 21, 2009, 07:10		#4
sega Senior Member Sebastian Gatzka Join Date: Mar 2009 Location: Frankfurt, Germany Posts: 729 Rep Power: 20	Hi bigred. Sorry, I just wasn't sure but now everything is clear. So you will need a multiphase solver which is capable of handling phase change due to evaporation. I think there is an incompressible solver doing exactly this: interPhaseChangeFoam. Have a look into this thread: http://www.cfd-online.com/Forums/ope...aporation.html Hope this helps! __________________ Schrödingers wife: "What did you do to the cat? It's half dead!"

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