Numerical Study Of The Flow Field In The Take-off And Landing Area Of The Aircraft In The State Of Ship Sailing

With the opening of the era of maritime strategy,aircraft carriers that use carrier-based aircraft as the medium to carry out various combat missions have been paid more and more attention.Compared with land-based aviation,the platform stability and runway environment of naval aviation operations are not as good as those of traditional air forces.At the same time,in addition to conventional straight-line cruising,ships also need to perform large-scale evasion and other turning actions in some special cases.Whether the carrier-based aircraft can perform combat tasks under such extreme conditions is extremely important.Therefore,it is necessary to carry out numerical research on the flow field in the take-off and landing area of the aircraft under different sea surface conditions.In this paper,an equal scale model is established for a large ship.Through numerical simulation,firstly,the influence law of changing environmental parameters such as sea state environment and deck wind direction angle on the take-off and landing airspace flow field of ship deck aircraft in the process of ship linear motion is studied.It is found that the left wind has a great influence on the airspace lateral velocity of ship bow and glide path,The wind coming from the right side has a great impact on the vertical wind shear in the aft airspace.It is concluded that the wind coming from the left side is more suitable for aircraft landing and the wind coming from the right side is more suitable for aircraft takeoff.Secondly,in the process of ship curve motion,the influence law of large-scale turning motion of ship under mild and medium sea conditions on the air flow field of aircraft take-off and landing is studied,the influence law of ship left turn and right turn on the air flow field of aircraft take-off and landing is obtained,and the conclusion that the right turn process is more suitable for aircraft take-off and landing is obtained.Finally,the recommended operating range of the ship linear motion aircraft and the dangerous range of the ship curved motion aircraft are given.The research results of this paper can provide reference for the design and development of large ships,the safe take-off and landing of aircraft and the planning and adjustment of take-off and landing path.