| 摘要 |
<p>The invention relates to installations and methods for controlling fluid dynamic drag of a moving object such as a vehicle, and/or unwanted forces and/or moments acting on such vehicles particularly when such vehicles are operating in crosswinds or gusts. The invention includes providing one or more conduits and/or connected spaces through which air and/or gas(es) are conducted from a region of low energy or other airflow to a region of the outer surface of the vehicle that is subject as a consequence of the airflow flowing over the vehicle during motion to suctions or reduced pressure that exert yawing, rolling and/or pitching moments on the vehicle and providing orifices (18) or other apertures through which the air and/or gas(es) from the conduit or conduits are bled into the airflow flowing over the vehicle in the region of the outer surface of the vehicle where suction and/or reduced pressure is present.</p> |
