a turbulent boundary layer

The separating flow in a turbulent boundary layer was surveyed in a 2-d curved-wall diffuser by employing 2-d laser Doppler velometer.

应用二维激光多普勒仪测量了二元曲壁非对称扩张通道内的湍流附面层分离流动。

As a result, roughly half the fuel required to maintain a level cruise is being burned to overcome the drag imposed by a turbulent boundary layer.

因此，保持巡航速度消耗的燃料大约一半都是用于克服紊流产生的阻力。

The results indicate that coating a compliant wall makes the logarithmic region of a turbulent boundary layer shift upwards as unstable hydrodynamic waves are absent.

这说明，在没有水动力学不稳定发生的情况下，柔性壁会使湍流边界层中速度型的对数区上移。