Effects of area discontinuity at nozzle inlet on the characteristics of high speed self-excited oscillation pulsed waterjets
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- 作者：Deng Lia ; b ; c ; Yong Kanga ; b ; kangyong@whu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Xiaolong Dinga ; b ; Xiaochuan Wanga ; b ; Zhenlong Fanga ; b
- 关键词：Self-excited oscillation ; Area discontinuity ; High-speed pulsed waterjet ; Pressure fluctuations ; Jet oscillating frequency
- 刊名：Experimental Thermal and Fluid Science
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：79
- 期：Complete
- 页码：254-265
- 全文大小：2569 K
文摘
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Effects of area discontinuity on the features of SEOPW were experimentally studied.
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Enlargement and contraction affect the pressure oscillation peak differently.
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The affected peak is also greatly related to inlet pressure and standoff distance.
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Contraction causes a larger pressure oscillation amplitude than enlargement does.
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Area discontinuity nearly has no effects on the oscillating frequency of SEOPW.