creat a monitor domain in 3D model
 

hello,
i have a problem.i need to monitor the date(like mass flow rate) in the cross section of the middle inlet(there are 3 inlet), like the pic of the simple cause of my model in FLUENT(note:not in the inlet boundary).
my model is 3D.how can i create a domain in the monitor location.i use the plane surface tool to create plane pass this location,but the plane pass also pass through the other two inlet.
http://www.flickr.com/photos/6239250...in/photostream

if you cannot see pic ,click here please:
http://www.flickr.com/photos/6239250...in/photostream

try to combine the plane surface tool with clip tool
You can narrow your surface between 2 iso values (x-y or z-coordinate, or whatever)

thank you

i have done fellow your advise and get it!