Pressure Characteristics Analysis of Self-excited Pulsed Jet Device
Abstract：Pressure characteristics and hitting power of self-excited pulsed jet device was studied by the independently developing testing system.The influence on hitting power and pulsing effect of cavity length and working pressure was researched.Pressure and hitting power variations of cavity wall different part for self-excited pulsed jet device was studied.The analysis result indicates that while cavity length is smaller the device has not pulsing effect under various working pressures;while cavity length becomes greater the device generates pulsing effect gradually and obtains optimum pulsing effect.The vortex-type cavitation gas bag is formed on two sides of jet core,and this is the basic reason for pulse jet generation.While pulsing effect is better the pressure and hitting power of different part for device cavity wall show obvious periodicity,but change cycle between the pressure and hitting power aren＇t in synchronization.
Keywords：self-excited pulsed jetpressure characteristicsperiodicitypulsing effect
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)