Preliminary studies on the planetary entry to Jupiter by aerocapture technique

Autor:	Hiroshi Hirayama, Shigeru Aso, Tetsuo Yasaka, Ridanto Eko Poetro, Shinji Hatta
Rok vydání:	2006
Předmět:	Physics Spacecraft business.industry Aerodynamic heating Aerocapture Aerospace Engineering Space exploration Jovian Astrobiology Jupiter Drag Physics::Space Physics Heat shield Astrophysics::Earth and Planetary Astrophysics Aerospace engineering business
Zdroj:	Acta Astronautica. 59:651-660
ISSN:	0094-5765
Popis:	Preliminary studies on the planetary entry to Jupiter by aerocapture technique are studied in order to complete technological challenges to deliver scientific probe with low cost and smaller mass of the spacecraft to Jupiter. Jupiter aerocapture corridor determination based on maximum deceleration limit of 5 g (lower corridor) and aerocapture capability (upper corridor) at Jupiter are carefully considered and calculated. The results show about 1700 m/s of saving velocity due to aerocapture could be possible in some cases for the spacecraft to be captured by Jovian gravitational field. However, the results also show that Jovian aerocapture is not available in some cases. Hence, careful selection is needed to realize Jovian aerocapture. Also the numerical simulation of aerodynamic heating to the spacecraft has been conducted. DSMC method is used for the simulation of flow fields around the spacecraft. The transient changes of drag due to Jovian atmosphere and total heat loads to the spacecraft are obtained. The results show that the estimated heat loads could be within allowable amount heat load when some ablation heat shield technique is applied.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::696470c40ffdecb093c01881316ded5c https://doi.org/10.1016/j.actaastro.2005.07.034 Zobrazit plný text záznamu Full Text from ScienceDirect