附壁射流式姿控发动机推力切换动态响应特性

Journal of Projectiles, Rockets, Missiles and Guidance(2020)

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Abstract
附壁射流式姿控发动机内流场动态响应过程极其复杂,且难以通过试验获得.利用数值仿真的方法对某附壁射流式姿控发动机推力切换过程中整个内流场的动态特性进行了研究,获得了推力切换动态响应特性.结果表明:推力切换时,阀内附壁侧和分离侧流量比例为6∶1;元件原分离侧形成附壁并发展稳定历时0.15 ms,换向拨片作动时间为0.18 ms;发动机推力切换响应时间为0.3 ms.
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