Usually the food consumed is small, because the fish's throat is small and makes a right angle to its stomach. 通常情况下,食物消耗较小,因为这种鱼的食管较细,且向右倾斜连接到胃中。
For fluidic throat skewing, smaller flap injector angles would result in larger vector angle without thrust loss; 对于喉道倾斜矢量控制方案,在扩张片上以与主流成某一角度的方向注入气流产生的矢量角最大且没有带来较大的推力损失;
It is shown further by examples that the mass ratio of rocket motor Can be increased and the propellant weight for cut-out can be decreased by selecting a bigger no-dimensional throat area and a smaller angle whenever possible. 通过例题进一步说明,在可能范围内选取较大的反喷管相对喉面和较小的倾角,可以提高发动机的质量比和节省推进剂。
In this paper, the Mach number control system in NF-6 wind tunnel is introduced, especially in detail for the compressor rotary speed control sub-system, the compressor stator vane control sub-system and the second throat control sub-system. angle. 笔者介绍了NF6风洞马赫数控制系统的组成、特点及运行方式,对转速控制子系统、压缩机静叶角控制子系统、二喉道栅指控制子系统等进行了较为详细的介绍。
When the throat width and area ratio are given, the best divergence angle is 22 °. 在喉部尺寸和扩张比一定时,扩张角为22度的微喷管推进性能最佳。
The paper discusses influence of the non-dimensional throat area of the reversal nozzle for thrust termination and the angle included between the axes of reversal nozzle and rocket motor on the propellant weight for cutout. 本文讨论反喷管相对喉面、反喷管轴线倾角对关车药量的影响以及关车药量的计算方法。
The effeets of the throat area ratio and divergent angle on the performance of the two-dimensional type turbulence generator are given. 本文给出了二元紊流发生器的喉道面积比和扩张角对其性能的影响,并建立喉道调节规律以指导实验者在台架上的操作。
Experimental study for such was carried out on established test rig with flat, converging and converging diverging nozzles of different throat diameter, shape and diverging angle. 为使流经缩放形喷管的低温热水得到充分膨胀和加速,在此对缩放形喷管的喉部及扩张段进行实验对比分析。