Kyushu University Academic Staff Educational and Research Activities Database
List of Reports
Uchida Takanori Last modified dateļ¼š2024.06.03

Professor / Renewable Energy Center / Research Institute for Applied Mechanics

1. Micro-Siting Technique of Wind Turbines within Both Onshore and Offshore Wind Farms by Using Large-Eddy Simulation.
2. T Uchida, Y Ohya, A numerical study of stably stratified flows over a two-dimensional hill - Part I. Free-slip condition on the ground, JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 10.1016/S0167-6105(97)00096-2, Vol.67-8, pp.493-506, 1997.04, Stably stratified flows over a two-dimensional hill in a channel of finite depth are analyzed numerically by using a newly-developed multi-directional finite-difference method at a Reynolds number Re = 2000. To simplify the phenomena occurring in the flow around the hill, the free-slip condition for the velocity is assumed on the ground, and the nonslip condition is imposed only on the hill surface. Attention is focused on the unsteadiness in the flow around the hill for the cases of K(= NH/pi U) > 1 where N and U are the buoyancy frequency and free-stream velocity and H is the domain depth. The flow unsteadiness is discussed, being associated with shedding of the upstream advancing columnar disturbance..
4. Large-Eddy Simulation of the Local Wind field over Complex Terrain Considering the Meso-Scale Meteorological Field.
5. 0909 Effects on Electricity Generated and Resistance to Wind by Multi-Supporting Structure of Wind Lens Turbine
Renewable energy resources including wind power generation are receiving more and more attention these days.In Japan,however,because of small land area,steep terrain,and population concentration in plane area,it is difficult to construct massive wind farm on land.The concept of offshore wind farm can overcome this problem.We have developed a wind turbine with a brimmed diffuser(Wind-Lens Turbine) that has an additional hollow structure(Wind-Lens) consists of a diffuser shroud and a ring-shaped brim at the diffuser exit periphery To install the Wind-Lens Turbine in an offshore wind farm,we need to size up the Wind-Lens Turbine.This time,we propose a multi-supporting structure appropriate to a floating platform and investigate the effects of multi-supporting structure on the wind turbine performance and resistance for the Wind-Lens Turbine.We make some wind tunnel experiments and numerical simulations..
6. 1036 Improvement of Power Generation on Wind Solar Tower
In the World, renewable energy has been developing such as Solar power, geothermal energy, biomass energy and Wind energy. We are also conducting research on renewable energy such as wind energy in our laboratory. It has issued the results of many studies of the wind turbine with using the wind-lens technology developed in the field of wind energy in particular. We are now conducting Experiment of modeling Solar Tower Power Plant inside the laboratory, and Having obtained experimental results conducted diffuser type chimney , greatly increasing the amount of power generation. We will show you the remarkable outcome on the conference.
7. Shinsuke Okada, Takanori Uchida, Takashi Karasudani, Yuji Ohya, Improvement in Solar Chimney Power Generation by Using a Diffuser Tower (vol 137, 031009, 2015), JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, Vol.138, No.1, 2016.02.