@article{oai:miyazaki-u.repo.nii.ac.jp:00002897, author = {上野, 剛史 and 小園, 茂平 and Ozono, Shigehira and Ueno, Takeshi}, journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki}, month = {Sep}, note = {A multi-fan wind tunnel was used for simulating thick neutral atmospheric boundary layers within a relatively short entry distance. While the multiple fans were driven mainly for forming target profile of arbitrary shapes, an array of cylinders (cylinders method) or siction fans (suction method) were used to obtain strong shear for providing turbulence energy. In the cylinders method, to attain a target profile, an iterative procedure was applied. Velocity profiles sufficiently close to the target profile were reproduced, although for the case of power exponent 1/7 by the array of rectangular cylinders, the profile was not precisely reproduced near the floor. The suction method provided turbulence of intensity 9-10% and the normalized Reynolds stress around 0.3 throughout the boundary layer, as observed in actual observations.}, pages = {53--60}, title = {マルチファン型風洞のプロファイル制御能を利用した境界層生成}, volume = {38}, year = {2009}, yomi = {ウエノ, タケシ and オゾノ, シゲヒラ} }