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本研究用数值模拟方法研究了四种增升方法。数值模拟的出发方程是可压流的N-S方程,格式为Beam-Warming格式的改进型。通过上述方法分别研究了:(1)动边界效应对提高升力的作用;(2)涡的有利干扰对主升力面的影响;(3)吸气的驻涡增升效应;(4)升力面下表面向下喷气的增升作用。研究结果表明,采用上述四种方法均可有效地提高飞行器的升力,对改善飞行器的性能有着十分重要的意义。
In this study, four methods of ascending were studied using numerical simulation. The starting equation for numerical simulation is the squeezable N-S equation in a modified version of the Beam-Warming format. The effects of moving boundary effect on lifting force are studied respectively by the above methods: (2) the influence of vortex favorable interference on the main lifting surface; (3) the entrapment vortex increasing effect; (4) the lifting surface Under the surface of the downward jet effect of the increase. The results show that using the above four methods can effectively improve the lift of the aircraft, which is of great significance to improve the performance of the aircraft.