CAJ | 학술논문

为了对高频微射流控制的圆射流流场的特性进行研究，设计了一套高频脉冲微射流控制圆射流的试验台。包括气体处理系统设计和脉冲发生器系统设计，通过气体处理系统可以使气体的流动状态符合试验要求；脉冲发生器采用结构紧凑的电主轴转阀结构，通过转阀的高速旋转形成高频微射流。利用对伺服电机转速的控制来实现微射流不同的激励频率，微射流激励频率主射流大涡频率比FV/F0值在0~5范围内变化，利用该试验台可以精确的实现微射流在不同流量和激励频率条件下对圆形射流流场的控制。
위료대고빈미사류공제적원사류류장적특성진행연구，설계료일투고빈맥충미사류공제원사류적시험태。포괄기체처리계통설계화맥충발생기계통설계，통과기체처리계통가이사기체적류동상태부합시험요구；맥충발생기채용결구긴주적전주축전벌결구，통과전벌적고속선전형성고빈미사류。이용대사복전궤전속적공제래실현미사류불동적격려빈솔，미사류격려빈솔주사류대와빈솔비FV/F0치재0~5범위내변화，이용해시험태가이정학적실현미사류재불동류량화격려빈솔조건하대원형사류류장적공제。
In order to research the characteristic of the round jet flow which controlled by micro-jets with high frequency , design a platform which use micro-jets control the main round jet . Including to design a gas processing system and a Pulse generator system , through the gas processing system can make the flow state to meet the requirements of the test ; Pulse generator uses a compact spindle rotary valve structure , high-frequency micro-jet formation by high-speed rotation of the rotary valve . Based on the control of the speed of the servo motor to achieve micro-jets with different excitation frequency , the ratio value of the mi-cro-jets excitation frequency and the main round jet large eddy frequency FV/F0 is from 0 to 5 , using this test bench can realize micro-jets under the different conditions of flow rate and excitation frequency to con-trol the round jet flow field accurately.