DISEÑO Y ANÁLSIS DE PROTOTIPOS A ESCALA REAL DE SISTEMAS PASIVOS DE MEJORA AERODINÁMICA EN CAMIONES
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2022-10-20
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Jaén: Universidad de Jaén
Resumen
En el presente trabajo se diseñan, fabrican e investigan diferentes dispositivos con el objetivo de mejorar la
aerodinámica de camiones. Se han hecho uso de varios modelos simplificados en laboratorios, así como de un
prototipo a escala real, para conocer el comportamiento de los dichos sistemas de control pasivo mediante la
medición de fuerzas con células de carga o de la presión en la base gracias a un escáner de presión. Entre los
sistemas traseros reductores del arrastre estudiados pueden distinguirse los rígidos y los flexibles. En
condiciones de flujo alienado ambos provocan reducciones notorias en el arrastre del cuerpo analizado. No
ocurriendo lo mismo ante condiciones de flujo cruzado, donde los dispositivos flexibles, por su naturaleza
adaptativa, presentan un mejor comportamiento.
In this work, different devices are designed, manufactured and investigated with the aim of improving the aerodynamics of trucks. Several simplified laboratory models, as well as a full-scale prototype, have been used to study the behaviour of the different passive control systems proposed by measuring forces with load cells or the pressure at the base using a pressure scanner. Among the rear drag reduction systems studied, a distinction can be made between rigid and flexible systems. In conditions of unleaded flow, both lead to significant reductions in the drag of the body under test. This is not the case under cross-flow conditions, where the flexible devices, due to their adaptive nature, perform better.
In this work, different devices are designed, manufactured and investigated with the aim of improving the aerodynamics of trucks. Several simplified laboratory models, as well as a full-scale prototype, have been used to study the behaviour of the different passive control systems proposed by measuring forces with load cells or the pressure at the base using a pressure scanner. Among the rear drag reduction systems studied, a distinction can be made between rigid and flexible systems. In conditions of unleaded flow, both lead to significant reductions in the drag of the body under test. This is not the case under cross-flow conditions, where the flexible devices, due to their adaptive nature, perform better.