Supersonic Wedge Flow at Mach=2.5

Figure 1. Computational domain

The grid size is 155x101x1. Mach number is Ma=1.5 and the flow is inviscid. For the spatial scheme, the MUSCL (Roe(MUSCL)) scheme and 2nd-order central difference scheme for the metrics are used. The Beam-Warming scheme (BW2) is used for time integration. The time step size Δt is 5.0 x 10-3. Five sub-iterations are used for each time step. The problem runs for 30,000 time steps. The boundary conditions and initial conditions are listed in Table 1.

Table 1. Boundary conditions and initial conditions for supersonic wedge flow.

Obtain the Files

Both mesh files and project input files can be accessed below. Remember to place the grid files in a subfolder with the set up file /cdvduct.

Setup file

Grid file

Start the Simulation

Change the directory to the subfolder with the set up file. Start the simulation by

mpirun –np 1 mpiaeroflo.exe < wedge.afl

Simulation Results

The Mach number contours are shown in Fig. 2. The surface Mach number distribution is compared with theoretical distribution curve in Fig. 3. Table 2 summarizes both of the theoretical and simulation results.

Table 2. Comparison between the AEROFLO results and theory results for supersonic wedge flow at Mach=2.5

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