092-583-7777

092-583-7779

Wake interference of a row of normal flat plates arranged side by side in a uniform flow

Wind engineering, Fluid engineering, Atmospheric boundary layer

Wind engineering section performs experimental and numerical research on problems of fluid dynamics, related to wind environments such as airflow over complex terrain and urban canopy, and to wind forces on buildings and structures, and to wind energy as clean and renewable energy. Current areas of research projects are: 1) Turbulence structure and transport characteristics of the atmospheric boundary layer; 2) Prediction of wind systems over local topographic features; 3) Aerodynamic characteristics and flutter phenomena of bluff bodies; 4) Development of wind energy and new wind turbine system; 5) Computational fluid dynamics in wind
engineering. In order to conduct these 　researches, various wind engineering facilities consisting of a large boundary- layer wind tunnel, thermally stratified wind tunnel and water tanks are effectively utilized.

Research Interests

• Development of a high-density Floating-body Energy farm
  keyword : Wind, Solar, Tidal current, Wave
  2010.10.
• Development of high efficiency mini water energy system using Water-lens turbine
  keyword : Windlens, Water-lens turbine, Micro/mini water energy, river
  2011.04.
• Research on the utilization of wind energy
  keyword : Wind-lens turbine, Shrouded wind turbine, Brimmed diffuser
  1999.04.
• Reserch on the Atomospheric Boundary Layer
  keyword : Atomospheric Boundary Layer, Turbulance, Stratified Flow, Wind tunnel experiment, Numerical simulation
  1993.04.
• Research on the prediction method of wind system
  keyword : Wind pattern, Numerical simulation, Wind tunnel experiment, Atomospheric environment
  1996.04.
• Research on the bluff-body flow and the aerodaynamics of them
  keyword : Aerodynamics characteristics, Flow visualization, Numerical caliculation, Wind tunnel experiment
  1981.04.

Current and Past Project

• Research on a huge floating body which has wind turbines, solar panels, tidal current turbines and wave energy conversion system.
• Research on the integraded renewable energy including solar, wind , hydrozen, etc.
• Using wind energy due to wind-lens turbines, the electricity will be provided to an electroric station. A couple of elecrtoric cars are provided the electlicity through the station. The operation system of the electroric cars will be established.
• We will initiate an irrigation project using wind energy in a desert area in the northwestern district in China. For this purpose, we will develop a wind turbine with a compact brimmed diffuser, called wind-lens turbine, which is expected to be suitable to a desert area with good wind condition.
• Developement of a numerical predicition method of local wind system
• Development of high-performance wind turbine

Academic Activities

Membership in Academic Society

• JAPAN ASSOCIATION FOR WIND ENGINEERING
• THE JAPAN SOCIETY OF FLUID MECHANICS
• THE JAPAN SOCIETY OF AERONAUTICAL AND SPACE SCIENCES
• METEOROLOGICAL SOCIETY OF JAPAN
• JAPAN　WIND　ENERGY　ASSOCIATION
• JAPANESE SOCIETY OF APPLIED METEOROLOGY AND CLIMATE RESOURCES

Awards

• DUNHUANG　AWARD
• Award for Excellent Applications in Fluid MechanicsThis award is presented to the scientists or engineers who developed new technologies using ideas and/or principles of Fluid Mechanics or new instruments or software for the research of Fluid Mechanics within 10 years from the end of the award year.2008Yuji OHYA, Kyushu UniversityDevelopment of wind lens microturbines
• Development of numerical model for dispersion over complicated terrain in the convective boundary layer
• Experimental Studies of Stable Boundary Layers and Convective Boundary Layers in the Atmosphere