二次元乱流噴流の速度・圧力場の特性に関する研究(<小特集>乱流研究の最前線)

概要

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A fluctuating static pressure is closely related with a fluctuating velocity in turbulent flow, and it plays an important role in the energy balance and anisotropy of turbulence. Thus, the measurement of fluctuating static pressure is very effective for clarification of the organized structure of the turbulent flow. In this study, the yaw-insensitive static pressure probe with a good frequency response was developed, and the simultaneous mesurement of velocity and pressure field was carried out in two dimensional jet flow by the combined probe of I-type hot-wire and static pressure probe. In the pressure spectrum, the κ^<-7/3> power low could be clearly observed, and the distribution of crosscorrelation between streamwise velocity and static pressure is shown to be consistent with the past model of coherent vortex structure.
一般社団法人日本機械学会の論文
2006-12-25