| 阀芯型面对燃气阀性能的影响 |
| |
| 引用本文： | 李哲,魏志军,张平.阀芯型面对燃气阀性能的影响[J].北京理工大学学报,2007,27(10):855-858. |
| |
| 作者姓名： | 李哲 魏志军 张平 |
| |
| 作者单位： | 北京理工大学,宇航科学技术学院,北京,100081;北京理工大学,宇航科学技术学院,北京,100081;北京理工大学,宇航科学技术学院,北京,100081 |
| |
| 摘 要： | 研究燃气阀阀芯型面对阀门性能的影响. 利用计算流体力学方法和动态网格技术对3种具有不同阀芯的燃气阀内流场进行模拟. 利用子程序计算了阀芯的运动情况,并用冷气实验对数值计算进行验证. 计算结果表明,凸面式阀门稳定较快,燃烧室压力较大且提供给气动元件的气流流量较大也较稳定;直线式、凸面式阀门在阀芯拐点处出现峰值且温度高于凹面式阀门温度峰值.
|
| 关 键 词： | 动态网格 燃气阀 阀芯型面 流量调节 |
| 文章编号： | 1001-0645（2007）10-0855-04 |
| 收稿时间： | 2007/6/28 0:00:00 |
| 修稿时间： | 2007-06-28 |
Influence of Spool Figure upon the Performance of Hot Gas Valves |
| |
| LI Zhe,WEI Zhi-jun and ZHANG Ping.Influence of Spool Figure upon the Performance of Hot Gas Valves[J].Journal of Beijing Institute of Technology(Natural Science Edition),2007,27(10):855-858. |
| |
| Authors: | LI Zhe WEI Zhi-jun and ZHANG Ping |
| |
| Institution: | School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | Studies the effect of spool figure upon the perfarmance of hot gas valves.The internal flow fields of three hot gas valves with different spools were simulated based on dynamic grid technique by the method of CFD.One user defined function was used to calculate the movement of spool.Characteristics of flow fields of those three valves was analyzed.Cold air test was carried out to validate the numerical simulation.The result of numerical simulation indicated that convex valve steadies quickly and provides higher pressure of chamber and higher mass flow rate of pneumatic component.Rectilinear and convex valves have higher temperature peak values at their inflexion. |
| |
| Keywords: | dynamic mesh hot gas valve spool figure flux adjust |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
| 点击此处可从《北京理工大学学报》下载免费的PDF全文 |
