How to define B.C. for U'2 (u'u',v'v',u'v',...)?

maysmech · September 14, 2010, 08:29

Hello to all,
i want to define inlet boundary condition for rearward facing step and using Driver and Sigmiller data. Not only for velocity, it also need inlet B.C for "U Prime 2" which is a tensor with 6 value for each node. (u'2,v'2,w'2,u'v',u'w',v'w')

The problem is how and where should it be defined. i haven't seen anywhere in tutorial files that in 0 folder has been defined.

maysmech · September 15, 2010, 07:39

i want use k-e turbulence model.

jiez · November 3, 2013, 19:07

The order of entries in U'2 should be (u'2 u'v' u'w' v'2 v'w' w'2)

skyinventorbt · November 7, 2013, 23:12

Quote:

Originally Posted by maysmech

i want use k-e turbulence model.

Use LRR model.

If k-epsilon is must, then change the tensor into a scalar 'k' and feed as input.
(As I guess only way to feed this tensor data is by using 'k')
--
KANNAN

September 14, 2010, 08:29	How to define B.C. for U'2 (u'u',v'v',u'v',...)?	#1
maysmech Senior Member Join Date: Jan 2010 Posts: 347 Blog Entries: 2 Rep Power: 17	Hello to all, i want to define inlet boundary condition for rearward facing step and using Driver and Sigmiller data. Not only for velocity, it also need inlet B.C for "U Prime 2" which is a tensor with 6 value for each node. (u'2,v'2,w'2,u'v',u'w',v'w') The problem is how and where should it be defined. i haven't seen anywhere in tutorial files that in 0 folder has been defined.

November 3, 2013, 19:07	Just for correction of U'2	#3
jiez New Member Jie (Jay) Zhang Join Date: Sep 2010 Location: Phoenix, AZ, U.S. Posts: 28 Rep Power: 15	The order of entries in U'2 should be (u'2 u'v' u'w' v'2 v'w' w'2)

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September 15, 2010, 07:39		#2
maysmech Senior Member Join Date: Jan 2010 Posts: 347 Blog Entries: 2 Rep Power: 17	i want use k-e turbulence model.