サボニウス風車の二体干渉における流動場の計測(<特集>第14回動力・エネルギー技術シンポジウム)

概要

論文の詳細を見る
Wind tunnel experiments are conducted to explore the flow field around two widely spaced Savonius windmills that interact to each other. The flow visualization with single and two arranged windmills is conducted with Particle Image Velocimetry (PIV). The mean and the fluctuation velocities are evaluated from PIV so that the interaction mechanism between two windmills is classified into the mean and the turbulent components. The best arrangement of two windmills is found to be a coupling of them with counter rotation at an inclined angle to the main flow. The pressure distribution on the best coupling condition is obtained by the data analysis of PIV, which indicates how the pressure field interferes positively to promote the rotations. From the present finding both for one-way and two-way interactions, the phase optimization for blades of each windmill is suggested for further promotion of the power-increasing interaction.
2010-03-25