ピエゾアクチュエータを用いた境界層制御で起きていること

Means to explain the flow structure generated by thin piezo-ceramic actuators are discussed. In the previous experiments, it was shown that the oblique waves, observed in an initial stage of the transition, could be cancelled by generating intercepting-waves using thin piezo-ceramic actuators. The initial aim of this study is to explain the generation process of these intercepting-waves by modeling the flow structure using a large number of the vortex tubes. However, it is found that this approach is not useful in the near wall region, because in these areas the diffusion of vorticity pattern on the wall is dominant compared with the convection.
JAXA Special Publication
宇宙航空研究開発機構特別資料