C205 励起された平面衝突噴流の伝熱機構(オーガナイズドセッション6 : 自由噴流,衝突噴流およびはく離を伴う熱・物質移動)

概要

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Wall temperature and velocity of a stagnation region of a plane impinging jet were measured by using thermochromic liquid crystal (TLC) and PIV. The plane jet was excited in time and space by adding suction / blowing type disturbances produced by servomotor-driven injectors. Surface temperature distribution showed unsteady streaks in parallel to a wall jet direction. The lowest spatial-averaged-wall temperature and vorticity intensity on the wall could be realized when the phase angle of the adjacent disturbance-wave train was φ=π, in which chain-link-fence structures were expected to be formed in the free-jet region upstream of the stagnation region.
社団法人日本機械学会の論文
2001-11-03