捩转

It signifies that the solutions are periodic or approximately periodic in some specified range of Reynold numbers and that a very complex transition occures by a few period doublings following Feigenbaum's route to chaos.

结果表明在一定的雷诺数范围内解是周期或拟周期的，并且有一个复杂的倍周期分叉途径向混沌转捩。

A new ignition system is applied to pulse detonation engine, which is a flame jet ignition system, to enhance a deflagration to detonation transition time and length.

为了缩短爆燃向爆震转捩的时间和距离，该文将一种新型点火系统－火焰喷射点火系统应用于脉冲爆震发动机。

The obtained results were compared to data of testing the same model in a hot-shot wind-tunnel IT-302M at M_∞≈6 and 8,τ=100～120ms,Re_(1∞)=(1.3～1.8)×10~6,with boundary layer tripping on the surfaces of the inlet ramp and side compression wedges.

所获数据与同一模型在热射流风洞IT-302M实验马赫数M∞≈6，8，运行时间τ=100~120ms，雷诺数范围Re1∞=(1.3~1.8×106，进气道压缩面和侧压缩面进行了边界层转捩。

The properties of the shear layers are analyzed in the states of purely laminar, fully turbulent and laminar+transition+turbulent using the Thwaites Integral and Head Integral methods.

文中采用的数值求解过程为：首先求解给定翼型的位流速度分布，在此基础上采用Thwaites积分法和Head积分法，分别计算纯层流、纯湍流以及层流+转捩+湍流这三种流态的边界层，分析三种流态的边界层特性。

In vortex ring zone, streamwise vorticity and vortex ring wrap together and interact each other. This interaction leads to the breaking of vortex ring.

在涡环区，流向涡和涡环相互缠绕，相互作用，导致涡环的空间失稳及最终破碎，涡环的破碎标志射流开始转捩进入湍流阶段。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。