# how extract velocity in 0.6 of free surface?

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February 17, 2015, 17:40
how extract velocity in 0.6 of free surface?
#1
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hamidi
Join Date: Sep 2012
Posts: 246
Rep Power: 7
hi dear all
i run a spillway model, i want obtain velocity quantities exactly in 0.6 of the free surface, because in experimental data also rusult obtained in this distance(0.6 of the free surface), how do this? i am familiar to define isosurface, iso clip, boundary intersection in poly line, but None this methods, solve not my problem.

thanks
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 February 17, 2015, 17:44 #2 Senior Member   Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 512 Rep Power: 12 Create "User Surface" 6in from surface you want results from. Plot/Extract results on/from User Surface

 February 17, 2015, 17:50 #3 Senior Member   hamidi Join Date: Sep 2012 Posts: 246 Rep Power: 7 dear singer1812 This distance (0.6) must be entered in one of tab in user surface? unfortunately dont understand your order, i should velocity in 0.6 m of the free surface, and other problem is find free surface in model? are exist exact way for find it? thanks

 February 20, 2015, 01:46 #4 Senior Member   hamidi Join Date: Sep 2012 Posts: 246 Rep Power: 7 nobody for help me?

 February 20, 2015, 06:13 #5 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,079 Rep Power: 101 You can get the free surface by a isosurface of volume fraction = 0.5. Then do the user surface offset from this surface as Edmund says.

 February 21, 2015, 14:47 #6 Senior Member   hamidi Join Date: Sep 2012 Posts: 246 Rep Power: 7 dear ghorrocks thanks a lot for gelp me, problem is solved best regards

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