Erosive burning of solid propellants
Erosive burning of solid propellants
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DOI：
10.2514/3.23692
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发表时间：
1993-12
影响因子：
1.9
通讯作者：
M. King
中科院分区：
文献类型：
--
作者：
M. King
这里介绍的是有关固体推进剂侵蚀燃烧的实验和建模工作的回顾（通过产物气体流经燃烧表面来提高燃烧速率）。简要介绍了这种现象引起的电机设计问题，特别是低端口/喉部面积比电机和无喷嘴电机。描述了测量固体推进剂燃烧速率的横流敏感性的各种实验技术，得出的结论是，在实际发动机中精确模拟流动（包括上游流动发展）非常重要，因为侵蚀燃烧的程度不仅取决于局部平均横流速度和推进剂性质，而且还取决于上游发展。在建模领域，简要回顾了简化模型和相关方程，然后描述了更复杂的数值分析模型。回顾了复合材料和双基推进剂模型。第二代复合材料模型与一系列测试中获得的数据具有良好的一致性，在这些测试中，系统地改变了复合推进剂的成分和异质性（粒度分布）。最后，描述了数值模型在侵蚀燃烧相关性发展中的应用，并对标度进行了简要讨论。
Presented here is a review of the experimental and modeling work concerning erosive burning of solid propellants (augmentation of burning rate by flow of product gases across a burning surface). A brief introduction describes the motor design problems caused by this phenomenon, particularly for low port/throat area ratio motors and nozzleless motors. Various experimental techniques for measuring crossflow sensitivity of solid propellant burning rates are described, with the conclusion that accurate simulation of the flow, including upstream flow development, in actual motors is important since the degree of erosive burning depends not only on local mean crossflow velocity and propellant nature, but also upon this upstream development. In the modeling area, a brief review of simplified models and correlating equations is presented, followed by a description of more complex numerical analysis models. Both composite and double-base propellant models are reviewed. A second generation composite model is shown to give good agreement with data obtained in a series of tests in which composite propellant composition and heterogeneity (particle size distribution) were systematically varied. Finally, the use of numerical models for the development of erosive burning correlations is described, and a brief discussion of scaling is presented.