F123 ステレオ PIV による自由液面下円形噴流断面の計測

概要

論文の詳細を見る
Free surface and its underlying flow field may cause non-linear interaction resulting to phenomena such as self-induced sloshing. Fluctuations by the turbulence affect on free surface, causing the surface shape to be varied. In order to cvaluate the interaction between free surface and turbulence, three-dimensional free surface shapes and the three-dimensional velocity distributions beneath the free surface should be simultaneously measured. In this study, improved Specklegram Method[2] was applied to visualize the 3-dimensional free surface shape. Specklegram Method uses laser specklegram refraction at the free surface, resulting to a simple measurement setup. Stereo-PIV was combined with this Specklegram Method. Using this system, three dimensional free surface shape and three velocity components beneath the free surface was simultaneously measured.
日本流体力学会の論文
2001-07-31