可視化情報学会誌
Online ISSN : 1884-037X
Print ISSN : 0916-4731
ISSN-L : 0916-4731
208 正角錐ディフューザ床壁面上の流れの可視化
大島 貴充
著者情報
ジャーナル フリー

1995 年 15 巻 Supplement1 号 p. 81-84

詳細
抄録

The flow in diffusers with total divergence angle 6° and 8° was visualized by the surface tuft and tracer methods in which smoke and polystyrene microspheres . The movements of tufts, smoke and polystyrene microspheres with respect to time were monitored from a position perpendicular to the floor of diffusers, using two 8 mm video cameras. The behavior of flow differed depending on the total divergence angle 6° and 8° ; perturbation of flow with the total divergence angle of 8° was greater than that with 6° With the diffuser having a total divergence angle of 8°, separated flow occurred even at the inlet, and the area of reverse flow at coners was large. Futhermore, there was fairly strong irregular reverse flow at the outlet of diffuser. The behavior of reverse flow at the outlet was not identical at left corner and right corner. The axis of main flow did not agree with that of diffuser and varied with time. Reynolds numbers at the inlet in the experiment were represented by 3.1×104 and 6.2×104.

著者関連情報
© 社団法人 可視化情報学会
前の記事 次の記事
feedback
Top