冲压增程弹进气道设计方法与性能分析

以冲压增程弹为应用背景进行了进气道设计.结合增程弹的特点,讨论了轴对称进气道中心锥参数、喉道参数、外罩参数的选择.特别对进气道唇口处参数、扩张段角度设计方法进行了分析.设计了单锥混压式、单锥外压式以及双锥混压式三种进气道,并进行了数值模拟.分析了进气道主要设计参数对其性能的影响.数值结果表明,就增程弹的性能要求而言,双锥混压式进气道的性能较高.

Inlet Design and Performance Calculation for Ramjet Assisted Projectile

An inlet has been designed for ramjet assisted range projectile.With the features of ramjet assisted range projectile,such factors as cone parameters,throat parameters,encloser and parameters have been discussed.In particular,an analysis of cone lip parameters and diffuser angle is made.Furthermore,three inlets,single cone with inner contraction,single cone without contraction,and double cone with inner contraction have been designed.With these inlets,numerical simulation and performance also have been cond...