It is necessary to simulate the high enthalpy, high pressure, Machnumber and the same concentration of oxygen species as air in hypersonic flight.
地面实验设备必须要模拟高超音速飞行状态下气流的焓、压力、M数和空气中氧气的组分。
2
With increasing convective machnumber the skewness and flatness factors increase a little and the peak positions move outwards.
随着对流马赫数的增加，脉动的偏斜性和间歇性略有增加，并且其峰值对应的位置向混合层外侧移动。
3
Results show that under small Machnumber the main source of discrete noise is the fluctuating force, which gives a guide for cutting discrete noise down.