Fully-Coupled Fluid-Structure Interaction Simulations of a Supersonic Parachute

AMS Seminar Series

Speaker: Jonathan Boustani, Computational Aerosciences Branch, NASA Advanced Supercomputing Division
September 19, 2019

Presentation

Seminar Slide Deck (PDF-20.7MB)

Abstract

A validated computational fluid-structure interaction method for simulating the complex interaction between the large deformation of very thin, highly deformable structures and compressible flows is extended to consider large-scale problems in supersonic flows using parallel computing. The coupled fluid-structure interaction system is solved in a partitioned, or weakly-coupled, manner. The foundations of the applied fluid-structure interaction method are a higher-order, block-structured Cartesian, sharp immersed boundary method for the compressible Navier-Stokes equations and a computational structural dynamics solver employing a geometrically nonlinear 3-node shell element based on the mixed interpolation of tensorial components formulation. The method is applied to large deformation fluid-structure interaction validation cases before being applied to the inflation of a supersonic parachute in the upper Martian atmosphere where the goal is to demonstrate the capabilities of the method when considering large-scale problems in supersonic flows.

Biography

Jonathan Boustani is a NASA Pathways student in the Computational Aerosciences Branch of the NASA Advanced Supercomputing Division at NASA Ames Research Center. He is a Ph.D. student in Mechanical Engineering at the University of Kentucky, where he is developing numerical finite difference and finite element methods to simulate highly nonlinear fluid-structure interaction problems. The current applications include studying supersonic parachute inflation in the upper Martian atmosphere. Jonathan received his Bachelor of Science in Mechanical Engineering from the University of Kentucky in 2017. He is an alumnus of the NASA MSFC Propulsion Academy.

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