壁面吸込みによる平板上境界層の再層流化と再遷移(<小特集>流れの不安定性・乱流遷移とその応用)

概要

論文の詳細を見る
Boundary layer suction is applied to a turbulent boundary layer through a short strip of perforated wall to examine the development of near-wall coherent structures downstream of the suction area. Low-frequency fluctuations, which are markedly suppressed near the wall during relaminarization due to the boundary-layer suction, start to grow algebraically downstream of the suction area, leading to retransition to wall turbulence. The algebraic growth of near-wall low-frequency fluctuations in the retransition process is found to be due to appearance and development of near-wall low-speed streaks, which are responsible for by-pass boundary-layer transition caused by high-intensity background turbulence.
社団法人日本機械学会の論文
2002-04-25