A methodfor the study of the flow field around a re-entry vehicle is discussed. FIow field at re-entry is characterized by high energy with the presence of dissociatíve fficts. Tb take into account such dissociative fficts, a simplified model based on the use of a modified specific heat has been adopted and discussed. A numerical method has been validated by means of a comparíson with available data of Riley and De Jarnette [ 1]. Numerical results are also presented for a YES-2 re-entry capsule in the correspondence of three of the most critical flight conditions. the YES-2 mission is often defined as an inherently safe mission 12,31.Therefore, a very accurate evaluation of heat fluxes on the thermal shield is a key point for a proper design of the inflatable vehicle. The main goal of this paper is to present a simple approach for heat flux prediction during the re-entry phase and to apply the proposed methodology to YES-2 heat fluxes prediction. Two different configurations of the YES-2 vehicle (i.e., the closed shape and the inflated shape or triple rory) have been considered and numerically simulated at different altitudes and Mach numbers.During numerical simulations, in order to properly consider the high-energy flow conditions, a simplified dissociative model based on the introduction of a modified Cp has been adopted. Actual numerical values have been calculated using a Monti-Napolitano model for dissociative mixtures [4,5].The modified Cp has been implemented into a commercial CFD code, FLUENT. As a preliminary test, a comparison with available data of Riley and De Jarnette [1] has been conducted.The 2nd Young European Satellite (YES-2) is aproject sponsored by the European Space Agency (ESA), developed from a network of universities and coordinated by Delta-Utec, a small aerospace company based in the Netherlands. PROBLEM
FORMUIATION Physical ProblemIn the present study, two different configurations of the reentry capsule (i.e., the closed shape and inflated shape) (see
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.