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和一般的飞行器一样,在近空间飞行器的研制中,其边界层的转捩和湍流也是需要考虑的两个重要问题。但即使是对一般的飞行器,“转捩”和“湍流”也还是两个历经百年而仍未很好解决的问题,而对近空间飞行器来说,空气动力学本身就还存在若干新的需要研究解决的基础问题,边界层的转捩和湍流就更是没有很好解决的问题。本文讨论了两个问题:1)为增强对高超声速飞行器边界层转捩预测的能力,需要开展哪些方面的研究工作及其困难;2)是否有可能当飞行器飞行高度足够大时,其边界层就不会再有湍流问题?
As with most aircraft, the transition and turbulence of the boundary layer are also two important issues to be considered in the development of near space vehicles. But even for the average aircraft, the “turbulence” and “turbulence” are still two problems that have not been solved well for centuries, and the aerodynamics itself still exist for near space vehicles A few new basic problems that need to be studied and solved are even more problems that are not well resolved by the swirling and turbulent boundary layer. This article addresses two issues: 1) what research needs to be done and how difficult it is to enhance the ability to predict the boundary layer transition of the hypersonic vehicle; 2) is it possible that when the flight altitude of the aircraft is large enough, its boundary layer No more turbulence problems?