Journal of Applied Mechanical Engineering

Shape optimization of supersonic bodies to reduce sonic boom signature

4^th International Conference and Exhibition on Mechanical & Aerospace Engineering

October 03-04, 2016 Orlando, USA

Ramesh K Agarwal

Washington University, USA

Keynote: J Appl Mech Eng

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 singleobjective 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.

Biography :

Ramesh K Agarwal received PhD from Stanford University in 1975 and Post-doctoral training at NASA Ames Research Center in 1976. From 1976 to 1994, he was the Program Director and McDonnell Douglas Fellow at McDonnell Douglas Research Laboratories in St. Louis. From 1994 to 2001, he was the Sam Bloomfield Distinguished Professor and Executive Director of National Institute for Aviation Research at Wichita State University in Wichita, KS. He is currently the William Palm Professor of Engineering at Washington University in St. Louis. He is the author/co-author of nearly 250 archival papers and over 500 conference papers. He is on the Editorial Board of 20+ journals. He is a Fellow of eighteen societies including AIAA, ASME, ASEE, SAE, IEEE, APS and AAAS among others. He is the recipient of many honors and awards.

Email: rka@wustl.edu