| 二次喉道扩压器对COIL的影响实验 |
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| 引用本文： | 蔡光明,刘军,王永振,朱连贵,李春领,谢秀芳.二次喉道扩压器对COIL的影响实验[J].强激光与粒子束,2005,17(12):1807-1811. |
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| 作者姓名： | 蔡光明 刘军 王永振 朱连贵 李春领 谢秀芳 |
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| 作者单位： | 中国工程物理研究院 应用电子学研究所， 四川 绵阳 621900 |
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| 基金项目： | 国家863计划项目资助课题 |
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| 摘 要： | 氧碘化学激光器分别采用二次喉道扩压器和8°扩压器时，对在不同阀门开度下的气流方向的壁面静压曲线和背压曲线，光轴壁面静压曲线，出口总压与上游压比值曲线，输出功率曲线进行了测量。对两种扩压器的数据进行了对比，结果表明：与8°扩压器相比，二次喉道扩压器能够有效隔离扩压器下游气流对光腔的干扰，显著减小捩区长度，并将转捩区控制在扩压器内。在激光器背压升高时，二次喉道扩压器的稳定性更强。
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| 关 键 词： | 氧碘化学激光器 光腔 扩压器 总压损失 压力恢复 |
| 文章编号： | 1001-4322(2005)12-1807-05 |
| 收稿时间： | 2005-05-14 |
| 修稿时间： | 2005-07-12 |
Experimental study on influence of secondary-throat diffuser on COIL |
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| CAI Guang-ming,LIU Jun,WANG Yong-zhen,ZHU Lian-gui,LI Chun-ling,XIE Xiou-fang.Experimental study on influence of secondary-throat diffuser on COIL[J].High Power Laser and Particle Beams,2005,17(12):1807-1811. |
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| Authors: | CAI Guang-ming LIU Jun WANG Yong-zhen ZHU Lian-gui LI Chun-ling XIE Xiou-fang |
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| Institution: | Institute of Applied Electronics, CAEP, P.O.Box 919-1011, Mianyang 621900, China |
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| Abstract: | A secondary-throat diffuser and an 8°diffuser are used respectively on COIL.The performance parameters of the two diffusers are measured and compared.The result indicates that the secondary-throat diffuser may effectively insulate the flow disarrangement from the diffuser,avoid the down-stream flow disarrangement into the optical resonator,improve the stability of static-pressure in resonator,and enhance the stability of the output power of COIL.The secondary-throat diffuser is propitious to COIL at high back-pressure. |
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| Keywords: | COIL Resonator Diffuser Stagnation pressure loss Pressure recover |
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