Aero‐Structural Analysis of Flexible Structure Membrane Aeroshell (Sanjoy Kumar Saha, preCICE2022)
Channel: preCICE Coupling
Date: 25/05/2022

Pre-recorded talk for the 3rd preCICE Workshop, February 21-24, 2022, organized by the University of Stuttgart (online). https://precice.org/precice-workshop-2022.html

Authors: Sanjoy Kumar Saha
Affiliation: Hokkaido University, Japan

Atmospheric entry is one of the most critical phases in planetary exploration missions due to the strong heating, communication blackout and aerodynamic loads caused by the high velocity of the capsule. The use of a deployable aerodynamic decelerator with flexible membrane as an entry vehicle is a convenient concept that has drawn significant research attention because it provides reduced aerodynamic heating with low ballistic coefficient.

In this study, the membrane aeroshell was investigated by a fluid‐structure interaction (FSI) model based on open‐source fluid solver SU2, computational structural solver CalculiX and coupling library preCICE. The present analysis model accurately recreated fundamental flow features such as swing motion, shock waves, and the expansion area in the flow field simulation. The aeroshell was elastically deformed by aerodynamic force caused by the large pressure difference between the front and rear side of the vehicle.