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In the Outline window, highlight Materials. In the Materials window, highlight Fluid, and click Create/Edit.... this will launch the Create/Edit Materials window; here we can specify the properties of the fluid. Set the Density to Ideal Gas, the Specific Heat to 1006.43, the Molecular Weight to 28.966. When you have updated these fields, press Change/Create.
Boundary Conditions
In the Outline window, select Boundary Conditions. We will now specify each boundary condition for the simulation.
Farfield
In the Boundary Conditions window, select farfield. Use the drop-down menu to change the Type to pressure-far-field. You will be asked to confirm the change, and do so by pressing OK. Next, a dialogue box will open with some parameters we need to specify. Change the Gauge Pressure (Pascal) to 101325, and Mach Number to 3.
