Author(s)

F. Yamamoto, T. Uemura, M. Iguchi, J. Ohta, A. Wada & K. Moif

Abstract

3D PTV based on binary image correlation method and its application to a mixing flow with a bubbling jet F. Yamamoto", T. Uemura\ M. Iguchi^ J. Ohta*, A. Wada^, K. Moif ^Department of Mechanical Engineering, Fukui University, 3-9-1 Bunkyo, Fukui-shi 910, Japan ** Faculty of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560, Japan ^Faculty of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565, Japan ^ AW Industries Co., Takefu-shi 915, Japan ABSTRACT The present paper proposes a new three-camera-utilized stereo pair matching technique with correction of light refraction at water-air boundary plane and describe a particle tracking algorithm for three-dimensional particle-tracking velocimetry (3D PTV) based on a cross-correlation method using two-consecutive-time-step binary pictures. The new techniques are applied to measure three-dimensional velocity vectors of two-phase flow in a cylindrical water vessel with

Keywords