hydrogen leakage in the room

mamalili · January 29, 2015, 15:02

hi every body
I am a bigginer
I try to modelling a room with a leak and dispersion of hydrogen.
1-what kind of model is useful to modeling this problem?
2-how to plot volume fraction(h2)-time in the certain points
if i not sucssesful in this project in a month later, i suiside! believe me ...
please help me ...

CeesH · January 30, 2015, 06:58

I take it the rest of the room contains a gas?
You need to use a single phase setup with species tracking. Look up the tutorial on "modelling species transport without reactions", "modelling species transport and gaseous combustion" on the ansys costumer portal to get some more info on species tracking.

if you are only interested in the mean concentration versus time, set up a monitor for the volume-average hydrogen concentration and write this to a file. If you are also interested in spatial evolution, set up multiple monitor points, set up a movie of contour-plots or isosurfaces, or export the whole hydrogen concentration field for post-processing in MATLAB or some other program of choice.

p.s., No matter how awesome CFD may be, it's not worth dying for

mamalili · February 1, 2015, 00:13

thank U deer CeesH.
yes , the room is fulled with the air initially.
I interested in satial evalution for some points. species transport modelgove me mole fraction , mass fraction ,... and no thing about volume fraction but I have volume fraction gragh.

I mentioned that I am bigginer my friend

if it is possible explain setup multiple monitor point, or export the whole hydrogen concentration fields with menu, for me e.g: difine>solution>monitor ....
Do U have any simple case dimilar to my model , my friend?
thank U again.

January 29, 2015, 15:02	hydrogen leakage in the room	#1
mamalili New Member Join Date: Jul 2013 Posts: 16 Rep Power: 12	hi every body I am a bigginer I try to modelling a room with a leak and dispersion of hydrogen. 1-what kind of model is useful to modeling this problem? 2-how to plot volume fraction(h2)-time in the certain points if i not sucssesful in this project in a month later, i suiside! believe me ... please help me ...

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[ICEM] Ogride in of a room in ICEM CFD	metmet	ANSYS Meshing & Geometry	3	July 31, 2014 14:00
[GAMBIT] Object in room with that object being the purpose of investigation	fluentgambituser	ANSYS Meshing & Geometry	3	August 24, 2011 01:52
Hydrogen concentration inside the battery room	mazhar1613	ANSYS	0	August 15, 2011 02:31
Salome and Code Saturne simulation of simple room and objects	cristian.ocnarescu	Main CFD Forum	0	June 21, 2010 10:19
Contaminant Distribution in Air-Con Room	Jules	FLUENT	0	June 13, 2002 10:57

January 30, 2015, 06:58		#2
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	I take it the rest of the room contains a gas? You need to use a single phase setup with species tracking. Look up the tutorial on "modelling species transport without reactions", "modelling species transport and gaseous combustion" on the ansys costumer portal to get some more info on species tracking. if you are only interested in the mean concentration versus time, set up a monitor for the volume-average hydrogen concentration and write this to a file. If you are also interested in spatial evolution, set up multiple monitor points, set up a movie of contour-plots or isosurfaces, or export the whole hydrogen concentration field for post-processing in MATLAB or some other program of choice. p.s., No matter how awesome CFD may be, it's not worth dying for

February 1, 2015, 00:13		#3
mamalili New Member Join Date: Jul 2013 Posts: 16 Rep Power: 12	thank U deer CeesH. yes , the room is fulled with the air initially. I interested in satial evalution for some points. species transport modelgove me mole fraction , mass fraction ,... and no thing about volume fraction but I have volume fraction gragh. I mentioned that I am bigginer my friend if it is possible explain setup multiple monitor point, or export the whole hydrogen concentration fields with menu, for me e.g: difine>solution>monitor .... Do U have any simple case dimilar to my model , my friend? thank U again.