可動渦発生器下流に生じる縦渦の周期的挙動 : 高速度舌部の過渡応答と回転X形熱線流速計の開発(流体工学,流体機械)

概要

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This paper is focused on the high velocity tongue beneath the longitudinal vortices downstream of a pair of active vortex generators (AVG) with common flow up configuration. An active control of turbulent boundary layer separation is one of the most interesting projects. It is important to achieve a smart control system based on the detailed information of time depended characteristics of the longitudinal vortices. Phase averaged mean velocity is measured by a newly developed rotating X-array hot-wire anemometer. The high velocity tongue shows rapid response to the height of the AVG at the final stage of up phase compared with the early stage of down phase. The transportation of high velocity fluid beneath the longitudinal vortices plays an important roll on the response of longitudinal vortices.
一般社団法人日本機械学会の論文
2006-02-25