difference between mass and momentum source

Niru · November 26, 2012, 16:42

I included a subdomain in my domain (CFX-PRE)
I am trying to model a cryogenic which flows in 2 phase. Currently i have entered 2 components Air & cryogenic.
Cryogenic has to modelled in multiphase.

1.I would like to know the difference between specifying a mass source and
momemtum source.
2.Also difference between specifying Bulk source & fluid sources separately.

Engr.RZA · November 28, 2012, 10:41

I suggest you to use mass flow conditions for your case.

Bulk source is suitable for the fully developed flow in channel/pipe.

November 26, 2012, 16:42	difference between mass and momentum source	#1
Niru New Member niru Join Date: Apr 2012 Posts: 29 Rep Power: 3	I included a subdomain in my domain (CFX-PRE) I am trying to model a cryogenic which flows in 2 phase. Currently i have entered 2 components Air & cryogenic. Cryogenic has to modelled in multiphase. 1.I would like to know the difference between specifying a mass source and momemtum source. 2.Also difference between specifying Bulk source & fluid sources separately.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Simulation of Axial Fan Flow using A Momentum Source Subdomain	Liam	CFX	26	April 23, 2013 16:37
Water subcooled boiling	Attesz	CFX	7	January 5, 2013 03:32
Mass source, Momentum source theory.	diffo	FLUENT	4	August 21, 2009 10:26
Problem with Mass source, Momentum source theory	diffo	Fluent UDF and Scheme Programming	0	August 20, 2009 06:10
Mass transport, momentum source and turb K.E	CFDtoy	FLUENT	0	April 24, 2006 00:33

November 28, 2012, 10:41		#2
Engr.RZA New Member RZA Join Date: Nov 2012 Posts: 25 Rep Power: 2	I suggest you to use mass flow conditions for your case. Bulk source is suitable for the fully developed flow in channel/pipe.