Aerodynamic analysis of Commercial Experiment Transporter re-entry capsule

Autor:	William A. Wood, Peter A. Gnoffo, Didier F. Rault
Rok vydání:	1996
Předmět:	Lift coefficient Drag coefficient Angle of attack Aerospace Engineering Aerodynamics Mechanics Wake Physics::Fluid Dynamics Lift (force) symbols.namesake Mach number Space and Planetary Science Drag symbols
Zdroj:	Journal of Spacecraft and Rockets. 33:643-646
ISSN:	1533-6794 0022-4650
Popis:	An aerodynamic analysis of the Commercial Experiment Transporter re-entry capsule has been performed using the laminar thin-layer Navier-Stokes solver LAURA. Flowfield solutions were obtained at Mach numbers 1.5, 2, 5, 10, 15, 20, 25, and 27.5. Axisymmetric and 5-, 10-, and 20-deg angles of attack were considered across the Mach-number range, with the Mach 25 conditions taken to 90-deg angle of attack and the Mach 27.5 cases taken to 60-deg angle of attack. Finite-rate chemistry solutions were performed above Mach 10; otherwise, perfectgas computations were made. Drag, lift, and pitching-moment coefficients were computed, and details of a wake flow are presented. The effect of including the wake in the solution domain was investigated, and base-pressure corrections to forebody drag coefficients were numerically determined for the lower Mach numbers. Pitchingmoment comparisons were made with direct simulation Monte Carlo results in the more rarefied flow at the highest Mach numbers, showing agreement within 2%. Thin-layer Navier-Stokes computations of the axial force were found to be 15% higher than the empirical/Newtonian-based results used during the initial trajectory analyses.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::70fa658103cbeb9ba3d519f6c2f0c269 https://doi.org/10.2514/3.26814 Zobrazit plný text záznamu