Projects per year
This paper proposes a multi-fidelity and multi-disciplinary framework that combines low- and high-fidelity aerothermodynamics, thermal analysis, flight dynamics, and structural analysis in a modular approach to achieve a favourable trade-off between cost and accuracy. The novelty in the current study is two-fold: one is to simulate a more accurate destructive re-entry process over using a prescribed altitude trigger for fragmentation, and the other is to implement automatic fidelity switches between high- and low-fidelity models for the aerothermodynamics based on the shock-envelope approximation of Billig's formulation. For the high-fidelity flow modelling, the open-source SU2-NEMO code is used to solve the slip to continuum regimes while the SPARTA-DSMC solver is used for transitional and free-molecular regimes. To estimate the fragmentation altitude, a linear structural analysis of objects modelled as joints are continually carried out using the FEniCS finite elements solver. A temperature-dependent von Mises yield criterion is used to identify failure in joints. The software framework, TITAN Transatmospheric Flight Simulation, is applied to the ESA ATV re-entry and fragmentation test case.
|Number of pages||13|
|Publication status||Published - 19 Sep 2022|
|Event||73rd International Astronautical Congress 2022 - Paris, France|
Duration: 18 Sep 2022 → 22 Sep 2022
|Conference||73rd International Astronautical Congress 2022|
|Abbreviated title||IAC 2022|
|Period||18/09/22 → 22/09/22|
- space debris
- atmospheric re-entry
- design for demise
FingerprintDive into the research topics of 'Multi-fidelity and multi-disciplinary approach for the accurate simulation of atmospheric re-entry'. Together they form a unique fingerprint.
- 2 Finished
15/11/21 → 31/03/22