It is best if the graphical display window is small enough that both it and the Fluent window are both visible simultaneously. If this window is too big, rescale it by dragging the edges of the window.
Look at the grid: Display- Grid- Display. 
If the grid is not valid, you will have to return to Gambit and regenerate the grid. Look for any error messages that indicate a problem with the grid.
Verify the integrity of the grid: Grid- Check. If all went well, it should give no errors, and the word Done should appear. Some information is displayed on the main screen. Fluent will read in the grid geometry and mesh that was previously created by Gambit. In Select File, select airfoil.msh from the lisitng of available files shown on the right side. Read the grid points and geometry of the airfoil flow domain: After a few seconds, the main Fluent window should appear on your screen. (Note: It is assumed that the grid file resides in the Fluent subdirectory.) From your main directory, enter "cd Fluent" to change the working directory to Fluent. cshrc file so that you won't have to add it manually every time you log in. Enter "set path = (/disk03/local/Fluent.Inc/bin $path)" to give you access to the Fluent programs. Create a Unix shell: Desktop- Unix shell. If you have just completed the Gambit learning module for generating the grid, you should already be logged in, and your working directory should be Fluent. Log onto one of the SGI cluster computers. (See the learning module, Gambit - Generation of Grid for a 2-D Airfoil.) The file airfoil.msh is assumed to exist on the student's Fluent directory on the SGI cluster. Note: This set of instructions assumes that the student has already run the Gambit program, and has generated a grid for the airfoil. Readers should already be familiar with the notation used in this module, as described in the learning module, Fluent and Gambit - Introduction and General Information. In this document is a procedure that enables students to solve a 2-D airfoil flow problem with the CFD program, Fluent.
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