空气室位置对脉冲水射流的影响  

STUDY ON THE EFFECT OF AIR- CHAMBER'S SITE UPON PULSED WATER-JET

作　　者：蒲家宁[1] 高松竹[1] 陈明[1] 

机构地区：[1]解放军后勤工程学院,重庆400016

出　　处：《西南石油学院学报》2006年第2期89-91,共3页Journal of Southwest Petroleum Institute

基　　金：国家自然科学基金项目(50175108)

摘　　要：应用水力瞬变特征线解法,建立设有空气室的永冲水射流系统的数学模型,差分网格只取脉冲源、空气室和喷嘴三个边界点,用所创立的变时步法解算。算例说明,空气室的位置对射流有重要影响,应当按各系统的具体情况正确设置,以取得增强脉冲水射流的效益。The paper structures the mathematic models for analyzing the phenomena of pulsed water - jet of a system embodied air - chamber was established with the method of the hydraulic transient characteristic stream. The differential grid had three boundaries only, pulse source, air-chamber and nozzle, and none interior node being needed. For the lengths of upstream and downstream sections may be unequal, using the novel Variable Time Step Method is necessary. The sample computation was shown that, in order to induce an acceptable hydraulic resonance to strengthen pulsed water-jet. The air- chamber should be positioned correctly according to the concrete condition of the given system.

关 键 词：脉冲水射流 空气室 水力共振 水力瞬变 特征线解法 变时步法 

分 类 号：TP34[自动化与计算机技术—计算机系统结构] TD263[自动化与计算机技术—计算机科学与技术]