Static Pressure Measurement of High-speed Pulsating Jet

Abstract

Pulsating jet generated by discharge of pulsating flow through a pipe has strong unsteadiness, which makes it difficult to measure the flow pattern experimentally. Every effort has been made so far to obtain the flow properties in the pulsating jet by numerical method, while the experimental technique has also been sought. In the present study a static pressure probe for fluctuating supersonic jet is designed and used to examine static pressure history of the pulsating jet. In addition, instantaneous static pressure distribution along the jet axis is obtained by combining this result with visualization study. In this paper the procedure of the experimental method and the result of measurement are described.