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216                  Chapter 11  Incompressible Flow Analysis



                                    The next important step is to go to the Concept tab on top
                                     of the screen and select Surfaces From Sketches.
                                    Select the Sketch1, the square will become yellow.
                                    Click Apply icon on the right side of the Base Objects tab
                                     in  the  Details  View  at  the  lower  left  of  the  screen.    The
                                     square  will  become  cyan.    The  right  side  of  the  Base
                                     Objects  tab  will  show  1  Sketch with  1  Part,  1  Body
                                     appears in the Tree Outline window.
                                    Then,  click  on  Generate.    We  now  have  a  unit  square
                                     domain.



















                                    The domain is ready for meshing, but before that, we will
                                     specify boundary conditions on the domain first.
                                    We will give the name of the upper edge as Lid.  On the
                                     upper tools bar, select the Selection Filter: Edges icon (box
                                     with arrow and green edge)










                                    Place the cursor near the top edge of the square and click,
                                     the top edge will become green.  Then, right click to select
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