


Yuji Ohya | Last modified date:2019.12.06 |

Post-doctoral Fellow /
Wind Engineering Section
Division of Renewable Energy Dynamics
Research Institute for Applied Mechanics
Division of Renewable Energy Dynamics
Research Institute for Applied Mechanics
Graduate School
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Homepage
http://www.riam.kyushu-u.ac.jp/
Phone
092-583-7777
Fax
092-583-7779
Academic Degree
Wake interference of a row of normal flat plates arranged side by side in a uniform flow
Field of Specialization
Wind engineering, Fluid dynamics, Atmospheric boundary layer, Wind energy
Outline Activities
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) Development of a hybrid energy generation system using solar heat and wind in a wind-solar tower; 6) 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
Research Interests
Membership in Academic Society
- A hybrid renewable energy system by solar heat and wind in a wind-solar tower
keyword : solar heat, wind aloft, solar chimney, wind-lens vertical type, co-generation, triple-generation
2015.01. - Development of a multi-rotor system using wind-lens turbines
keyword : diffuser-augmented wind turbine, multi rotor system, wind energy, wind turbine
2014.01. - 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
1999.04Development of high-performance wind turbine with a brimmed-diffuser. - Reserch on the Atomospheric Boundary Layer
keyword : Atomospheric Boundary Layer, Turbulance, Stratified Flow, Wind tunnel experiment, Numerical simulation
1993.04Resarch on atmospheric boundary layer by using wind tunnel and numerical analyses. - Research on the prediction method of wind system
keyword : Wind pattern, Numerical simulation, Wind tunnel experiment, Atomospheric environment
1996.04Development of a prediction method for local wind pattern and atmospheric environment. - Research on the bluff-body flow and the aerodaynamics of them
keyword : Aerodynamics characteristics, Flow visualization, Numerical caliculation, Wind tunnel experiment
1981.04Bluff body flow and aerodynamics.
- 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.
- Research on the integraded renewable energy including solar, wind , hydrozen, etc.
- Development of high-performance wind turbine
- Research on a huge floating body which has wind turbines, solar panels, tidal current turbines and wave energy conversion system.
Books
Reports
Papers
Presentations
- 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
- DUNHUANG AWARD
- Experimental Studies of Stable Boundary Layers and Convective Boundary Layers in the Atmosphere
Educational


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