A Study on Control of Boundary Layer Transition on a Rotating Disk using Orbital Motion

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560202
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Kumamoto University
• Principal Investigator: MUNEKATA Mizue 熊本大学, 自然科学研究科, 准教授 (30264279)
• Co-Investigator(Renkei-kenkyūsha): YOSHIKAWA Hiroyuki 熊本大学, 大学院自然科学研究科, 准教授 (40221668)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 流体計測 / 境界層遷移 / 回転円板 / 境界層制御

Outline of Final Research Achievements

The objective in this study is to investigate the boundary layer flow, and to control the boundary layer transition on the rotating disk by systematizing the effects of the orbital motion on the boundary layer flow. The effects of a disk diameter, orbital speed and orbital direction on the boundary layer flow on a rotating disk under orbital motion are found from the flow of low Reynolds number(laminar flow) to the high Reynolds number(turbulent flow), by the flow visualization using a oil-film technique, the dynamically flow visualization using a smoke-wire technique, and the velocity measurements using a hot-wire anemometer.

Free Research Field

流体工学