超音波流速分布計測法を用いた乱流計測における測定体積の影響 : 第1報,アンサンブル平均,Reynolds 応力および流量に関する検討(流体工学,流体機械)

概要

論文の詳細を見る
This paper presents a velocity profile measurement using Ultrasonic Velocity Profile (UVP) measuring method. This method has many advantages over the conventional flow measurement methods. First, it has the capability to measurement of an instantaneous velocity profile on a line. Secondly, it is applicable to opaque liquids. This method can be applied to various flow measurements, but it requires a large measurement volume. In this paper, the ensemble averaged velocity profile and the Reynolds stress have been measured for fully developed turbulent pipe flows in a vertical pipe and the effect of the measurement volume on the measured values was estimated analytically. The results show that the effect of measurement volume appears in buffer region and viscous sublayer.
2002-03-25