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Hydrogen concentration inside the battery room

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August 15, 2011, 03:31	Hydrogen concentration inside the battery room	#1
mazhar1613 New Member Mazhar Join Date: Oct 2010 Posts: 5 Rep Power: 16	my case: A battery room with batteries producing hydrogen. there is an air inlet duct and there is a mixture out let duct. As shown in figure attached. I have to findout the hydrogen concentration inside the room. I m using Species transport model without reaction. i have problem with B.C. When i take "mass flow inlet" BC with "out flow" BC., ANSYS-FLUENT give me error Primitive error: Gauss Elimination error: Singular Matrix Anybody can guid me to right path...about model and BC

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