This study presents the design, implementation, and assessment of a combined passive active flow control technique with aim increasing aerodynamic performance fixed-wing Micro Air Vehicles (MAVs). Power consumption restrictions in MAVs support choice solutions such as use modified (tubercled) wing leading edge. strategy successfully allows to delay mitigate stall but detrimental effects are fou...

in recent years, need to increase the convenience of trips in railway vehicles causes that train operators and manufacturers focus on reducing the noise level which is sensed by passengers. in this paper, first the state of modeling acoustic noise in cab train is discussed and natural frequencies and acoustic mode shapes are derived and then formulation of acoustic pressure in the cab will be o...