西南石油学院学报2001，Vol.23Issue(1)：43-45,3.
自激振荡脉冲射流装置的频率特性
FREQUENCY CHARACTERISTICS OF PULSATION-JET DEVICE OF SELF-EXCITED OSC ILLATION
摘要
Abstract
Based on the theory of fluid network, we established the similar mathematical mo del of pulsation-jet device of the self-excited oscillation. The numerical resul ts, in agreement with the tests, had clearly shown that the jet nozzle was funct ions of oscillator and lowpass filter, and the maximal pressure response could b e obtained for input flow, and its main frequencies close to the natural frequen cy of the nozzle. The natural frequency of the nozzle is directly determined by its main structural parameters and wave speed in jet flow, so the parameters suc h as pressure, the length of oscillation cavity, the diameter of lower nozzle an d porosity of jet flow have significant effects on its frequency characteristics . Moreover the design standard of the device was presented in this paper, that i s to say, the natural frequency of the nozzle should be close to that of input o scillating flow.关键词
自激振荡/射流/频率特性/流体网络分类
能源科技引用本文复制引用
杨林,唐川林,李晓红,廖荣庆..自激振荡脉冲射流装置的频率特性[J].西南石油学院学报,2001,23(1):43-45,3.
