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采用数值模拟方法对船体与直升机旋翼的复合流场进行求解,研究了不同风向时复合流场的流线形态与湍动能分布、旋翼桨叶表面静压分布与旋翼升阻特性.数值模拟的正确性由缩比船模风洞试验验证.研究结果表明:旋翼流场与船体流场间存在相互干扰;侧风会增大复合流场的湍流范围,加剧旋翼周围流场的湍流强度和旋翼桨叶的挥舞振动;右舷15°风向条件不利于直升机的甲板悬停.
Numerical simulation is used to solve the composite flow field of the hull and the helicopter rotor. The flow pattern and turbulent kinetic energy distribution, the static pressure distribution on the rotor blades and the rotor lift resistance are studied. The numerical simulation is correct The results show that there is mutual interference between the rotor flow field and the hull flow field; the crosswind will increase the turbulence range of the composite flow field, intensify the turbulence intensity of the flow field around the rotor and increase the turbulence intensity of the rotor blade Leaf waving vibration; starboard 15 ° wind conditions are not conducive to helicopter deck hover.