5.1 2-D simulations

Both Euler and viscous studies were conducted on the scramjet forebody, inlet, and isolator sections. 2-D Euler flow studies were conducted using the air vehicles unstructured solver (AVUS) [11]. AVUS is a three-dimensional finite volume unstructured-grid Euler/Navier-Stokes flow solver. 2-D isolator viscous simulations were conducted using an in-house computational scheme, the integral differential scheme (IDS) [12]. The following contour plots (Figures 17–19 and 24–29) represent the solution of the AVUS software, whose units are in the SI. Whereas the contour plots shown in Figure 20 depict the solution of the IDS. The IDS is built on the premise of reducing numerical and modeling errors. As such, the IDS

Figure 19.

Figure 20.

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Results from isolator 2-D IDS simulation.

Figure 18.

AVUS Euler results pressure contours.

AVUS Euler results density contours.

Inversely Designed Scramjet Flow-Path DOI: http://dx.doi.org/10.5772/intechopen.85697

Figure 17. AVUS Euler results velocity distribution.
