Study on Control method of Tornado-like flow by Experiment and CFD

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560583
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: The University of Tokushima
• Principal Investigator: NODA MINORU 徳島大学, ソシオテクノサイエンス研究部, 准教授 (30283972)
• Co-Investigator(Kenkyū-buntansha): NAGAO Fumiaki 徳島大学, 大学院ソシオテクノサイエンス研究部, 教授 (40172506)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: PIV / 強風災害 / 竜巻シミュレータ / 竜巻状流れ / 漏斗雲 / デブリ雲

Outline of Final Research Achievements

The flow fields in the tornado-like flow simulator with multi-fan and multi-vane were investigated by 3D PIV method. On the other hand, it was clalified that debris flying in Tornado formed debri cloud by the equilibrium of aerodynamic forces, centrifugal force and gravity in radius-height plane. Moreover, it was indicated that strength and scale of tornado flows could be estimated from their photo and movies by investigation of relation ships between charateristics of tornado flows and shapes of their funnel clouds and of their debris clouds.

Free Research Field

工学