Investigation of the vertical flow and vertical Lagrangian dispersion in a stratified fluid

2015 Fiscal Year Final Research Report

• Project/Area Number: 24656124
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: Kyoto University
• Principal Investigator: HANAZAKI HIDESHI 京都大学, 工学(系)研究科(研究院), 教授 (60189579)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 成層流体

Outline of Final Research Achievements

Experiments and numerical simulations have been performed on the flow around a sphere moving vertically in a salt-stratified fluid. In the experiments, PIV(particle image velocimetry) and LIF(laser induced fluorescence) are used to measure the fluid velocity and the concentration of salt. The results show that the vertical dragging of fluid by the sphere and the resultant generation of a vertical jet are governed by the boundary layer of salt concentration on the sphere surface.

Free Research Field

環境流体力学