Pre-Analysis & Start-Up

Pre-Analysis

In order to calculate the expected results behind the shock, we recommend using a oblique shock wave calculator (link grc.nasa.gov). At Mach 3 and an angle of 15 degrees, we find the following:

To calculate this by hand: 

flow with M = 3 comes straight on in the x-direction towards the wedge. We know theta from our geometry of the wedge. From this we can calculate the normal component of our free stream Mach number. 

\LARGE
\begin{equation}\nonumber
M_{1N} = M_1sin(\theta)
\end{equation}
 

Open ANSYS Workbench

We are ready to do a simulation in ANSYS Workbench! Open ANSYS Workbench by going to Start > ANSYS > Workbench. This will open the start up screen seen as seen below

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To begin, we need to tell ANSYS what kind of simulation we are doing. If you look to the left of the start up window, you will see the Toolbox Window. Take a look through the different selections. We will be using FLUENT to complete the simulation. Load the Fluid Flow (FLUENT) box by dragging and dropping it into the Project Schematic.

Right click the top box of the project schematic and go to Rename, and name the project Supersonic Flow Over a Wedge.You are ready to create the geometry for the simulation.

Go to Step 2: Geometry

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