Urgent HELP:dimensioning a microchannel
 

hello everyone,

i am modeling a periodic flow through a rectangular microchannel of 70 micrometers(width).i am kind of novice with regards to fluent and would really really appreciate the answers to the following basic queries:

1.how to specify different dimensions for a microchannel i.e. length in mm but height and width in micrometer. 2.how to specify the symmetry wall condition.

waiting eagerly for your reply. thanking you all. bose.