[29 Apr 2014] Supersonic aircraft are poised for a comeback. Current regulations do not permit supersonic flight over land due to sonic boom noise. However, recent advances in simulation-based design are opening the door to new supersonic aircraft designs with reduced sonic boom impacts. The design of these aircraft requires accurate predictions of sonic boom on the ground and techniques for shaping the aircraft to achieve a desired boom signature while maintaining performance.
This webinar details how Pointwise and SU2 can be used to tackle supersonic aircraft design. Watertight surface and volume meshes for complex geometries can be quickly generated in Pointwise and exported to the native SU2 format. A properly constructed mesh aids in accurately predicting boom on the ground. Furthermore, a new script for Pointwise can help designers generate Free Form Deformation (FFD) boxes for geometry parameterization and shape design in SU2.
We will also demonstrate how to formulate and solve a shape design problem in SU2, using a continuous adjoint formulation to obtain the sensitivities for gradient-based optimization. This includes a discussion of proper settings for the flow and adjoint problems, objectives and constraints, FFD design variables, and mesh deformation. Finally, we will present optimal shape design results from SU2 for the Lockheed Martin 1021 aircraft.
The Lockheed Martin 1021 is one of the test cases from the AIAA 1st Sonic Boom Prediction Workshop. At that website you will find the technical paper Full Configuration Low Boom Model and Grids for 2014 Sonic Boom Prediction Workshop by J. M. Morgenstern, M. Buonanno, and F. Marconi (AIAA Paper 2013-0647).
|Description||Format||File Name||File Size [MB]|
|Webinar Video File||MP4||Pointwise-Webinar-Supersonic-Aircraft-Shape-Design-Powered-by-SU2-and-Pointwise||2200|
|Uninitialized grid for the Lockheed Martin 1021||PW||LM-1021-EulerMesh.pw||20|
|Presentation slides from the webinar||Pointwise-Stanford-Webinar-Slides.pdf||2|
|Script to generate free form deformation boxes for SU2||GLF||CreateFFD.glf|
|SU2 mesh, config, and restart files for the LM 1021 optimization case||GLF||https://su2code.github.io/training.html|
Supersonic Aircraft Shape Design Powered by SU2 and Pointwise is also now available on YouTube.
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