If the Reynolds number is large the flow is no longer laminar as the particles tend to move in a random manner. 如果雷诺数很大，由于流体质点变成杂乱无章的运动流动不再是层流。
The linear scaling and the Reynolds number represent classical, aerodynamic similitude requirements applicable to law-speed flight. 线性缩尺和雷诺数是低速飞行时经典的气动力模似要求。
