Ramesh K. Agarwal
Washington University, USA
Title: Shape optimization of supersonic bodies to reduce sonic boom signature
Biography
Biography: Ramesh K. Agarwal
Abstract
The focus of this paper is on the simulation and shape optimization of the Lockheed SEEB-ALR and 69 Degree Delta Wing-Body in supersonic flow. For flow field calculation, the commercial CFD flow solver ANSYS Fluent is employed. The near field pressure disturbance is used to determine the strength of the sonic boom signature. The computational results for the two experimental test cases are first compared with the experimental data. The body shapes are then optimized using a single-objective genetic algorithm. The results show a significant decrease in strength of the sonic boom. The sonic boom propagation code s-Boom is employed to compute the signatures on the ground. Appropriate scaling law relating the boom from a full size vehicle to the boom from a small scale model is employed.