Abstract
The unsteady aerodynamics of parachutes have been a challenge to study for years due to the coupling between the aerodynamic forces and system dynamics. This paper presents results from a Navier-Stokes flow solver simulating a steady inflow around a parachute model at a Reynolds number of 365,000. The parachute model, rigid and hemispherical in shape, is similar to that of a ribbon parachute with four ribbons or rings. Pressure results are compared to experimental data to judge accuracy of the simulations. Additional results include pressure and vorticity contours, as well as computational oil-flow visualizations and streamlines. These results illustrate the complex unsteady flow pattern in and around the ribbon parachute model.
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