Achieving quieter supersonic flight through outer-mold line modifications: An optimization study
Conference
Reddy, SR, Dulikravich, GS, Carpenter, FL et al. (2019). Achieving quieter supersonic flight through outer-mold line modifications: An optimization study
. 1-15. 10.2514/6.2019-3104
Reddy, SR, Dulikravich, GS, Carpenter, FL et al. (2019). Achieving quieter supersonic flight through outer-mold line modifications: An optimization study
. 1-15. 10.2514/6.2019-3104
This work performs an outer-mold-line (OML) shape optimization study of a vehicle flying at supersonic speeds to minimize aerodynamic drag and sonic boom loudness on the ground. An efficient freeform deformation technique is used to parameterize the configuration allowing for significant control over the OML shape with only a few parameters. The near field pressure around the vehicle, obtained using an in-house developed unstructured CFD solver, is propagated through the atmosphere to the ground. A design of experiments study was performed and a surrogate model was constructed to rapidly compute the loudness metrics for each new configuration without performing the full CFD analysis. The surrogate model was coupled to the NSDE-R algorithm to perform the optimization.
