Examinando por Autor "Gómez Useda, John Alberto"
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- ÍtemDesarrollo de una aeronave no tripulada con detector de metales para la búsqueda de minas antipersonales(Fundación Universitaria Los Libertadores. Sede Bogotá., ) Bautista Pedreros, Jessica Andrea; Gómez Useda, John Alberto; Rodríguez Aldana, Didier
- ÍtemProceso de implementación de técnica de visualización Shlieren tipo Z para el análisis de interferencia de hélice en ALA UAV VTOL(Fundación Universitaria Los Libertadores. Sede Bogotá., ) Gómez Useda, John Alberto; Rodríguez Barón, Iván FelipeThis research presents an analysis of the implementation of the Schlieren visualization technique in wind tunnel, where the wing of an unmanned vertical take-off and landing aircraft and horizontal advance "vertical take off landing VTOL" is analyzed, initially performing a theoretical analysis calculation of the resistance generated by the vertical lift propellers and then performing a wind tunnel assembly of the Schlieren visualization technique type Z, where in order to observe the detachment of the boundary layer or the wakes generated on the top surface of the wing by means of photographs. Taking into account that the operation of unmanned aircrafts does not overcome the sound barrier and this subsonic flow when in contact with elements in front of the wing, besides generating drag when advancing, can generate vorticity, which can present air circulation bubbles that can at some point detach the boundary layer and consequently present uncalculated losses of lift in the wing. With the visualization technique we want to know how this interference occurs when the air passes through the propeller of a VTOL system.