Molar concentration

rubis · March 17, 2012, 12:16

hi,
please can you tell me how i can write the molar concentaration (model species ) in udf ,

thank you

Best regards

gearboy · March 18, 2012, 19:24

Quote:

Originally Posted by rubis

hi,
please can you tell me how i can write the molar concentaration (model species ) in udf ,

thank you

Best regards

search "partial pressure" in this forum.

byronsmith · March 21, 2012, 01:01

Hai,
Get the mass fractions of the species (Yi) using the macros[C_YI(c,t,i)] and then convert them into molar concentration using mass fraction * density/molar mass of species. density too can be accessed by the macros.

hope this helps.

with regards,
Byron Smith

rubis · March 21, 2012, 13:20

Thank you for your help

with regards,

March 17, 2012, 12:16	Molar concentration	#1
rubis Member rose Join Date: Dec 2010 Posts: 30 Rep Power: 15	hi, please can you tell me how i can write the molar concentaration (model species ) in udf , thank you Best regards

March 21, 2012, 01:01		#3
byronsmith Member Byron Smith R J Join Date: Mar 2009 Location: India Posts: 46 Rep Power: 17	Hai, Get the mass fractions of the species (Yi) using the macros[C_YI(c,t,i)] and then convert them into molar concentration using mass fraction * density/molar mass of species. density too can be accessed by the macros. hope this helps. with regards, Byron Smith soheil_r7 and arsenis like this.

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March 21, 2012, 13:20		#4
rubis Member rose Join Date: Dec 2010 Posts: 30 Rep Power: 15	Thank you for your help with regards,