Speakers
Description
In the scope of Ariane 6 development, thermal analyses are performed on the cryogenic cavities of the launcher 1st and 2nd stages. The Vulcan Aft Bay (VuAB), or cavity near the Vulcan 2.1 engine, experiences extreme heat differences between the engine exhaust, booster plumes, aerothermal fluxes, and its bottom liquid hydrogen tank and associated lines. Furthermore the thermal environment on ground has a specific chronology and associated natural and conditioning fluxes.
All these constraints lead to a specific modelling of the cavity and associated sizing cases. This enables the thermal justification of the launcher at system level, as well as thermal specifications to partners. Furthermore the thermal control of equipment items, as well as icing risk inside and outside this cavity, are discussed.
For the European Space Thermal Engineering Workshop, ArianeGroup will present the sizing constraints, and associated modelling involved with the VuAB cryogenic cavity, as well as anticipated results expected in the frame of Ariane 6 test campaign.
