how extract velocity in 0.6 of free surface?

hamidciv · February 17, 2015, 17:40

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

singer1812 · February 17, 2015, 17:44

Create "User Surface" 6in from surface you want results from. Plot/Extract results on/from User Surface

hamidciv · February 17, 2015, 17:50

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

hamidciv · February 20, 2015, 01:46

nobody for help me?

ghorrocks · February 20, 2015, 06:13

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.

hamidciv · February 21, 2015, 14:47

dear ghorrocks thanks a lot for gelp me, problem is solved
best regards

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February 17, 2015, 17:44		#2
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	Create "User Surface" 6in from surface you want results from. Plot/Extract results on/from User Surface

February 17, 2015, 17:50		#3
hamidciv Senior Member Hydreaulic structures Join Date: Sep 2012 Posts: 283 Rep Power: 15	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
hamidciv Senior Member Hydreaulic structures Join Date: Sep 2012 Posts: 283 Rep Power: 15	nobody for help me?

February 20, 2015, 06:13		#5
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	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
hamidciv Senior Member Hydreaulic structures Join Date: Sep 2012 Posts: 283 Rep Power: 15	dear ghorrocks thanks a lot for gelp me, problem is solved best regards