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1)  cone burning
燃速畸变
1.
Main factors that cause the cone burning of solid propellant were emphatically analyzed and compared,such as the concentration of fine oxidizer particle and the migration of plasticizer and curing agent at the interface near the wall.
分析比较了引发固体火箭发动机装药燃速畸变的因素,如壁面附近的增塑剂、固化剂的迁移以及细氧化剂聚集等。
2)  rapid distortion
快速畸变
1.
Under the assumption of rapid distortion the RNG k ε turbulence model was modified to include the compressibility effects and applied to in cylinder turbulent flows in internal combustion engines.
应用快速畸变假设对 RNG k-ε湍流模型进行压缩性修正后 ,将其应用于内燃机缸内湍流流动的数值模拟 ,计算采用任意拉格朗日 -欧拉法。
3)  speed distortion
速度畸变
4)  variable-burning rate
变燃速
5)  rapid distortion theory
快速畸变理论
1.
In this paper the rapid distortion theory is summarized briefly,and the application of this theory to the description of shear-free boundary layer, wall pressure fluctuation, flow over a low obstacle, interaction between different turbulent scales and some other problems is also briefly reviewed.
本文对湍流快速畸变理论进行了简要回顾,对其在无切变边界层、过山流动、脉动壁压、湍流大小尺度之间的相互作用等方面的应用进行了简要介绍。
2.
The rapid distortion theory is used to study the turbulent flow over sand waves;and the effect of the irrotational strain and the pre-existing shearing motion on the turbulence characters at the peak of sand wave is investigated emphatically.
运用快速畸变理论对河道中绕沙波流动进行了理论分析,重点探讨了无旋应变与持续切变效应对绕沙波流动波顶处湍流强度的影响,结果表明:在河道中绕沙波流动的外区,绕体前、后的水流湍流结构存在较大程度的关联,在用快速畸变理论研究绕沙波前、后湍动强度变化的过程中,必需同时考虑无旋应变与持续切变的影响。
6)  variety burning-rate propellant
变燃速火药
补充资料:超高燃速推进剂
分子式:
CAS号:

性质:燃速大于100mm/s的固体推进剂称超高燃速推进剂。主要用于特种用途的助推器如高速拦截武器、高速动能弹用的固体助推器。在高燃速固体推进剂药柱中镶嵌导热系数大的金属(一般为银)丝或石墨纤维可获得超高燃速固体推进剂,已得到实际应用。在高燃速固体推进剂配方中添加含量10%以上碳硼烷类高效燃速催化剂,也可获得超高燃速推进剂。此类催化剂因价格昂贵,未得到实际应用。多孔推进剂是一种超高燃速推进剂,但技术不成熟。

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