Numerical Simulation Of Coupled Interference Flow Field For Shipborne Aircraft And Ship In High Sea State

In recent years,with the continuous complexity of the sea form,the marine rights and interests have been paid more and more attention.China has increased the development of naval equipment,which puts forward higher and newer requirements for shipborne platforms and shipborne helicopters that can carry out various combat tasks on various types of ships.In this paper,the real water surface is simulated and the factors of wave and ship motion are added.The characteristics of the coupled flow field in the landing area above the deck are analyzed.The design scheme and technical support are provided to improve the safe take-off and landing ability of the carrier helicopter in high sea conditions.Firstly,this paper introduces the methods involved in the work of this paper step by step and carries out relevant calculation examples to verify the effectiveness of the selected methods.On this basis,it carries out the analysis of the characteristics of the ship aircraft coupled flow field under the static water surface and the wave water surface respectively.In this paper,the characteristics of the flow field of an isolated ship and the coupled flow field after the helicopter rotor is added are studied under the static water surface.In addition to the study of the characteristics of the flow field of an isolated ship and the coupled flow field of a ship and an aircraft at different heights of a helicopter,the analysis of the effects of waves and ship motion is also included,and the analysis of the characteristics of the coupled flow field under different wind directions is carried out.The results show that the addition of helicopter aggravates the separation of several air flows in the flow field of an isolated ship,and with the helicopter moving towards the deck and stern,the rotor tension and the downward force on the fuselage increase,while the effect of waves on the coupled flow field is not significant.