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Preliminary Test Predictions For Scale Ram-Air Parachute Testing, Christian A. Guzman Zurita
Preliminary Test Predictions For Scale Ram-Air Parachute Testing, Christian A. Guzman Zurita
Doctoral Dissertations and Master's Theses
The present thesis proposes a preliminary analysis to predict the aerodynamic performance for experimental tests of ram-air parachutes in a wind tunnel. A scaled experimental test setup is developed for determining the aerodynamic coefficients of lift (πΆπΏ) and drag (πΆπ·) conducted in a wind tunnel. Additionally, a CFD approach where a steady-state parachute shape defined based on experiments, photographs, and literature, is presented. The accuracy of the simulation depends considerably on the ability to resolve the canopy geometry. Therefore, a CAD geometry generation is implemented for flexible control of the canopy structure by implementing design parameters, e.g., chord, span and β¦
Experimental And Computational Analysis Of A 3d Printed Wing Structure, Aryslan Malik
Experimental And Computational Analysis Of A 3d Printed Wing Structure, Aryslan Malik
Doctoral Dissertations and Master's Theses
Correct prediction of aeroelastic response is a crucial part in designing flutter or divergence free aircrafts within a designated flight envelope. The aeroelastic analysis includes specifically tailoring the design in order to prevent flutter (passive control) or eliminate it by applying input on control surfaces (active control). High-fidelity models such as coupled Computational Fluid Dynamics (CFD) - Computational Structural Dynamics (CSD) can obtain full structural and aerodynamic behavior of a deformable aircraft. However, these models are so large that pose a significant challenge from the control systems design perspective. Thus, the development of an aeroelastic modeling software that can be β¦