hypersonic flutter meaning in English

高超音速颤振

The results are compared with unsteady numerical method and piston theory . local piston theory can be applied to projects better than piston theory for the high precision , and the wide application range . compared with the unsteady euler codes , it is an attractive way for its time saving in computing supersonic or hypersonic flutter
通过与非定常cfd方法和活塞理论的比较，证明当地流活塞理论具有精度高、使用范围广、效率高等优点，可以弥补原有活塞理论的很多局限性，其计算量比非定常cfd方法小得多。