IXV post-flight reconstruction and analysis of the aerothermodynamic measurements along the rarefied portion of the reentry trajectory
| Autor: | Luc Mieussens, Ysolde Prévereaud, Marc Schouler |
|---|---|
| Přispěvatelé: | ONERA / DMPE, Université de Toulouse [Toulouse], ONERA-PRES Université de Toulouse, Institut de Mathématiques de Bordeaux (IMB), Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
Direct Simulation Monte-Carlo
Computer science Computation Context (language use) 02 engineering and technology Computational fluid dynamics 01 natural sciences Intermediate eXperimental Vehicle [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] 010305 fluids & plasmas Earth reentry 0203 mechanical engineering 0103 physical sciences Point (geometry) Sensitivity (control systems) Aerospace engineering Fluid Flow and Transfer Processes 020301 aerospace & aeronautics business.industry Mechanical Engineering Experimental and flight data Computational Fluid Dynamics Reentry Condensed Matter Physics Rarefied hypersonic flow Heat flux Trajectory business |
| Zdroj: | International Journal of Heat and Mass Transfer International Journal of Heat and Mass Transfer, Elsevier, 2021, 178, pp.121582. ⟨10.1016/j.ijheatmasstransfer.2021.121582⟩ |
| ISSN: | 0017-9310 |
| DOI: | 10.1016/j.ijheatmasstransfer.2021.121582 |
| Popis: | International audience; Following the reentry of the Intermediate eXperimental Vehicle in 2015, a lot of efforts were carried out at the ONERA for the post-flight analysis and the reconstruction of the heat flux applied to the vehicle. This flight represents a unique means of validation of the computational tools employed for the design of such mission. The aim of this paper is to exploit for the first time these data in the rarefied portion of the vehicle’s reentry. In this context, DSMC simulations were performed between 115 and 90 km and a CFD computation was made for the 90 km flight point. In the standard numerical conditions, different degrees of agreement are obtained and a sensitivity analysis to various numerical and atmospheric parameters provides several ways to significantly improve the results. In addition, the DSMC and CFD comparison provides a good agreement for the surface quantities and suggestions to reach a better level of consistency between both methods and the flight data are finally discussed. |
| Databáze: | OpenAIRE |
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