I have a problem with the sign of mass flow rate Enthalpy -- CFD Online Discussion Forums

June 6, 2010, 19:02	I have a problem with the sign of mass flow rate Enthalpy	#1
behrang2009 Member Behrang Asgharian Join Date: Oct 2009 Posts: 38 Rep Power: 17	I put some Lines (from the menu 'surface-line') on my model in order to monitor the enthalpy flow rate. I use the flow rate integral which is integral of rhohu.dA the absolute values are OK but the sign is negative when it must be positive. I think this has got something to do with the inner product of u.dA. Does anybody know how I should define the monitor line in order to get positive enthalpy flow rates? By the way, if I use 'surface-rake' instead of 'surface-line', what will happen? Thanks Behrang

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Mass flow rate: calculation v/s computation	beguxa	FLUENT	5	December 2, 2018 22:02
mass flow rate of "interior"	Dong Fu	FLUENT	0	February 1, 2008 12:25
particle, parcel and mass flow rate balance	flybird	FLUENT	0	May 24, 2007 11:44
Mass flow rate	Neser	CFX	4	February 14, 2004 01:27
Possible?: Periodic conditions with non-constant mass flow rate.	Ray	FLUENT	0	April 10, 2000 07:10

All times are GMT -4. The time now is 21:44.