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基于CFD的双室制动器的数值模拟和实验
1School of mechanical and electrical engineering, North University of China, Taiyuan, 030051, China. sz202101029@st.nuc.edu.cn.
Scientific reports
|October 18, 2023
概括
优化炮火口车可以提高枪支的稳定性和安全性. 计算流体动力学模拟准确地预测了提高制动效率,并通过试射实验验证.
科学领域:
- 流体动力学 流体动力学
- 弹道学 弹道学 弹道学
- 机械工程 机械工程
背景情况:
- 炮火会产生高温,高压气体和冲击波.
- 火药气显著影响枪的稳定性,影响准确性和人员安全.
- 喷嘴车的性能对于减轻这些影响至关重要.
研究的目的:
- 为了数值模拟和优化双室口门车的设计.
- 分析喷口气流对枪体稳定性的影响.
- 通过车优化来提高射击准确性和安全性.
主要方法:
- 计算流体动力学 (CFD) 用于数值模拟.
- 使用了三维欧勒的控制方程,气体状态方程和k-epsilon模型.
- 应用了动态网状技术来建模喷口流量场.
- 优化车性能与预优化参数和实验数据进行了比较.
主要成果:
- 优化的口门车显示,效率提高了8.2%.
- 数字模拟结果显示,与实验数据相比,偏差很小,为10.5%.
- 该研究验证了CFD模拟的准确性和优化车的有效性.
结论:
- 优化的双口制动器显著提高了枪的稳定性和收回效果.
- CFD数值模拟是设计和优化口车的可靠工具.
- 这些发现为设计先进的火炮系统提供了宝贵的见解.
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