National Aeronautics and Space Administration

Glenn Research Center

Ryan Miller

“Procedure on the Development of a CAD Model of a Supersonic Business Jet for Geometric Parametric Design Studies to Mitigate Sonic Boom”

Abstract

Supersonic flight over the land is currently prohibited by international regulations due to the sonic boom associated with supersonic flight. Much research is currently devoted to studying geometries that prevent the coalescence of shockwaves emanating from an aircraft during supersonic flight in order to reduce its sonic boom signature. Complicated flow geometries and physics necessitates the use of computational fluid dynamics (CFD) for evaluating how a particular geometry mitigates the sonic boom signature of the aircraft. In order to determine an optimal aircraft geometry and configuration, a large number of design variables need to be investigated. It is therefore desired that a geometry be automatically changeable via an optimizer algorithm in order to effectively study a large design space. The objective of this project was to construct a controllable CAD model of the Gulfstream Aerospace Corporation’s geometry data for their supersonic business jet. The model was created such that key design parameters can easily be identified and changed into order to mold the model into any desired shape or configuration. The model was designed with the intent that an optimization routine would manipulate the design variables based on results from CFD calculations in order to find a configuration that best mitigates the sonic boom overpressure signal on the ground. A description of the how the Gulfstream Aerospace Corporation’s supersonic business jet concept is modeled with SolidWorks is described in this report. This paper is intended to be used as a manual for future researchers involved in this project.