Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)
- Volume 21 Issue 11
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- Pages.1458-1465
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- 1997
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
A study on the effect of injection pressure and ambient pressure for the growth of impinging spray
충돌 분무의 성장에 미치는 분사압과 배압의 영향에 관한 연구
- Cha, Geon-Jong (Mechanical Technology Research Center, Busan National University) ;
- Seo, Gyeong-Il ;
- Kim, Deok-Jul
- Published : 1997.11.01
Abstract
This study investigated the effects of pressure on the growth of an impinging spray. We obtained the frozen images which were scattered by Nd ; YAG laser light (pulse width : 7 ns) using synchronization circuit made in the laboratory. For an impinging spray a growth of the penetration length was progressed with increase of the injection pressure but an ambient pressure restrained its growth. The effect of an ambient pressure on penetration was larger than that of an injection pressure. The pressure ratio had an effect on the penetration growth rate. The thickness growth rate depended on both the injection pressure and the ambient pressure compositively. A lower injection pressure or a higher ambient pressure was required for spatial distribution of impinging spray.
Keywords