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- W4317583704 abstract "A parametric study of the static aerodynamic properties of the Orion Crew Module during supersonic and subsonic reentry phases via low-fidelity simulations is conducted. The commercial Ansys Fluent flow solver is utilized to perform Reynolds Averaged Navier-Stokes equations (RANS) simulations. Lift and drag coefficients are studied as functions of the freestream Mach number, $M$, and the angle of attack, $alpha$. The sensitivity of the simulations results with respect to the turbulence model, grid topology and resolution, and computational domain is addressed, along with the effect of the Reynolds number, varied by scaling the capsule geometry. The aerodynamic coefficients obtained from the present simulations are compared with existing wind-tunnel and CFD data from previous work in the literature. Flow field data on the surface of the capsule obtained from a (training) subset of the present simulations are used to determine the optimal placement of a reduced number of sensors for the reconstruction of the field on the full capsule surface. The reconstruction methodology is tested on all the other cases not used for training. The sensitivity of the reconstruction error to the choice of basis type, number of basis modes, and number of sensors is assessed." @default.
- W4317583704 created "2023-01-21" @default.
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- W4317583704 date "2023-01-19" @default.
- W4317583704 modified "2023-09-27" @default.
- W4317583704 title "Parametric studies of subsonic and supersonic reentry phases of the Orion Crew Module through numerical simulations" @default.
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- W4317583704 doi "https://doi.org/10.2514/6.2023-1375" @default.
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