Advanced Sonic Boom Prediction Using the Augmented Burgers Equation

Abstract

This paper presents an approach to predict the sonic boom ground signatures accurately by numerically solving the Augmented Burgers’ equation entirely in the time domain. The method is capable of predicting the shock thicknesses, thus improving the frequency spectrum of the ground signatures. This also improves the loudness calculation when compared to linear theory methods because the shock rise times are computed and not empirically adjusted or corrected. The method is capable of predicting under-track and off-track ground signatures, with or without wind effects, along with consideration for aircraft maneuvers. This method is very efficient and accurate, making it a very useful design tool in the development of supersonic cruise aircraft.