...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Two-stage ejector based pressure recovery system for small scale SCOIL
【24h】

Two-stage ejector based pressure recovery system for small scale SCOIL

机译：基于两级喷射器的小型SCOIL压力恢复系统

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The chemical oxygen-iodine laser (COIL) is the only chemical laser based on electronic transitions. It is essentially a low pressure, high flow rate system requiring high capacity vacuum pumps for its operation in its standard form. Since, the output power of COIL systems is a direct function of the input fuel rate, power scale up of these systems is a definite possibility which can be utilized in numerous civil and defense applications. However, scaling up and field applications necessitates exploration of possible means of reduction in size of vacuum systems for which an efficient ejector based pressure recovery system qualifies to be the prime candidate. In this paper, the gas dynamic aspects of a two-stage peripheral air ejector system suitable for a 500 W class COIL employing a flow rate of similar to 3 gm/s have been presented. The experimental results with this developed ejector system for the simulated flow conditions of the laser under vacuum have indicated a start up pressure in excess of similar to 50 Torr in the first stage and more than similar to 600 Torr in the second stage. The experimentally observed flow parameters at various locations in the flow field have been validated with the computational results obtained employing Fluent 6.1 software using 2-D axi-symmetric formulation. (C) 2005 Elsevier Inc. All rights reserved.
机译：化学氧碘激光器（COIL）是唯一基于电子跃迁的化学激光器。它本质上是低压，高流量的系统，需要大容量的真空泵才能以其标准形式运行。由于COIL系统的输出功率是输入燃油率的直接函数，因此这些系统的功率放大是绝对可能的，可以在许多民用和国防应用中使用。然而，按比例放大和现场应用需要探索减小真空系统尺寸的可能方法，对于这些方法，基于有效喷射器的压力恢复系统有资格成为主要候选人。在本文中，提出了适用于500 W级COIL的两级外围空气喷射器系统的气体动力学方面，该系统采用类似于3 gm / s的流速。对于激光在真空下的模拟流动条件，该开发的喷射器系统的实验结果表明，启动压力在第一阶段超过了50托，在第二阶段超过了600托。在流场中各个位置处实验观察到的流量参数已经通过使用Fluent 6.1软件使用二维轴对称公式获得的计算结果进行了验证。 （C）2005 Elsevier Inc.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号