2002 年 45 巻 2 号 p. 408-418
A numerical experiment is conducted to study the bypass transition of compressible plane Poiseuille flow. The space and time development of the disturbances into streaks is captured by employing a spatial DNS, which although requires more computational resources than the temporal one, allows having a full picture of the process. The generation and algebraic growth of the streaks, which are lifted away from the walls and oscillate in the spanwise direction, characterize the transition. The numerical results give some answers related to the transition of compressible plane channel flows, initiated by large amplitude random disturbances, and point to the universality of the breakdown mechanism in wall bounded flows (incompressible and subsonic) and to the important role of the near-wall streaks.
JSME international journal. Ser. 1, Solid mechanics, strength of materials
JSME international journal. Ser. A, Mechanics and material engineering
JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing
JSME International Journal Series A Solid Mechanics and Material Engineering