AM06-12-010 単一突起により形成された乱流楔の周辺の層流域で成長する斜行T-S波(乱流現象の制御・流れの抵抗低減(2),一般講演)

概要

論文の詳細を見る
The formation and development of oblique Tollmien-Schlichting waves around a turbulence wedge have been investigated in a radial liquid film flow. The liquid film flow was formed of water discharged to the atmosphere from a narrow cylindrical gap between the end of a pipe and a smooth surface of a disk. The turbulence wedge was generated artificially by a cylindrical roughness element in the laminar flow region of the liquid film flow. The behavior of oblique T-S waves was observed by means of high-speed photography. In addition to the observation, downstream development of the oblique T-S waves was calculated on the basis of a linear stability theory. For both the shape of the oblique T-S waves and the manner of the oblique T-S waves spreading outward on the way downstream, the calculation gave a good agreement with the experimentally observed result.
日本流体力学会の論文
2006-09-05