Simulation evaluation of an advanced control concept for a V/STOL aircraft

Abstract:The advantages associated to Vertical Short-Take-Off and Landing (V/STOL) have been demonstrated since the early days of aviation, with the initial technolology being based on airships and later on helicopters and planes. Its operational advantages are enormous, being it in the field of military, humanitarian and rescue operations, or even in general aviation. Helicopters have limits in their maximum horizontal speed and classic V/STOL airplanes have problems associated with their large weight, due to the implementation of moving elements, when based on tilting rotors or turbojet vector mechanical oriented nozzles. A new alternative is proposed within the European Union Project ACHEON (Aerial Coanda High Efficiency Orienting-jet Nozzle). The project introduces a novel scheme to orient the jet that is free of moving elements. This is based on a Coanda effect nozzle supported in two fluid streams, also incorporating boundary layer plasma actuators to achieve larger deflection angles. Herein we introduce a state-of-the-art review of the concepts that have been proposed in the framework of jet orienting propulsion systems. This review allows to demonstrate the advantages of the new concept in comparison to competing technologies in use at present day, or of competing technologies under development worldwide.

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“…A detailed description of these problems is presented in [21]. This path of research evolved over the years as can be seen in [22,23].…”

Section: Operational Considerationsmentioning

confidence: 99%

A review of thrust-vectoring in support of a V/STOL non-moving mechanical propulsion system

et al. 2013

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“…In this approach, secondary flow has been used to control the main exhaust flow stream, and in this way redirect the flow at or near the exit plane. A wide range of concepts have been proposed such as shock vector control [70.], sonic throat skewing [69], synthetic jet actuator [70][71] and co-flow or counter flow [69] nozzles. Experiment tests concluded the main flow can be deflected up to 15 0 .…”

Section: Introductionmentioning

confidence: 99%