| 多片撞壁喷雾的空间分布特性研究 |
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| 引用本文： | 陈雷,隆武强,杜宝国,刘宇.多片撞壁喷雾的空间分布特性研究[J].热科学与技术,2008,7(1):46-51. |
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| 作者姓名： | 陈雷 隆武强 杜宝国 刘宇 |
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| 作者单位： | 1. 大连理工大学,内燃机研究所,辽宁,大连,116024
2. 群马大学,工学部,日本,群马,376-0052 |
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| 摘 要： | 对四孔油嘴与多片导向套配合的碰撞喷雾进行了可视化试验研究,分析了背压及碰撞角对喷雾空间分布特性的影响.结果表明:与自由喷雾相比,多片撞壁喷雾的喷注液核区明显减小,扩散度显著提高;全碰方案较半碰方案具有更大的喷雾扩散范围;贯穿距随碰撞角的增大加而减小,扩散角和扩散范围随碰撞角的增大而增加.
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| 关 键 词： | 多片喷雾 可视化 喷雾特性 |
| 文章编号： | 1671-8097（2008）01-0046-06 |
| 收稿时间： | 2006-11-30 |
| 修稿时间： | 2008-01-22 |
Research on spatial distribution characteristic of multi-flake spray-wall impingement |
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| CHEN Lei,LONG Wu-qiang,DU Bao-guo,LIU Yu.Research on spatial distribution characteristic of multi-flake spray-wall impingement[J].Journal of Thermal Science and Technology,2008,7(1):46-51. |
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| Authors: | CHEN Lei LONG Wu-qiang DU Bao-guo LIU Yu |
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| Abstract: | The visualized experiment was carried out on the coordination spray impingement of multi-flake orientation sleeve and 4-hole nozzles. The impact of backing pressure and impingement angle on space distribution characteristic was analyzed. The result indicates that comparing to the free spray, the multi-flake spray impingement bears smaller core zone of oil bunch and obviously increases the degree of spread. Comparing with half-impingement, full-impingement has bigger spray diffusion area. Spray penetration decrease with the increase of impinging angle, diffusion angle and area increase with the increase of the impingement angle. |
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| Keywords: | impinging multi-flake spray spray visualization spray characteristic |
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