Abstract

An Euler code study has been conducted on a transatmospheric vehicle at Mach numbers from 1.5-4.5. The results show that the Euler code accurately predicted the lift, drag, and pitching-moment coefficients as a function of Mach number and angle of attack. The longitudinal stability characteristics were also predicted reasonably well as a function of Mach number. The code also predicted the changes in lift, drag, and pitching moment for forward and rearward shift of the wing from the nominal position. The Euler code provided an accurate prediction of the aerodynamic characteristics across the Mach-number range.

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