1. 高レイノルズ数乱流場生成ツールとしてのマルチファン型風洞
- Author
-
Sassa, Koji and Miyagi, Hiromori
- Subjects
high Reynolds number ,turbulent flow ,flow distribution ,マルチファン風洞 ,1様等方性乱流 ,homogeneous isotropic turbulence ,流れ分布 ,風洞試験 ,atmospheric turbulence ,Physics::Fluid Dynamics ,高レイノルズ数 ,大気乱流 ,aerodynamic characteristic ,Physics::Space Physics ,乱流 ,空力特性 ,multi-fan wind tunnel ,wind tunnel test - Abstract
We tried to generate quasi-isotropic homogeneous turbulence fields with high Reynolds numbers in the multi-fan wind tunnel. The fans making flow and counter flow were arranged like a checkered pattern and they were driven by a fluctuating signal transformed from continuous spectra with - 5/3 slope, The Reynolds number of the resultant turbulence fields ranged from 330 to 560. The turbulence fields realized in the multi-fan wind tunnel are expected to be very useful to study high Reynolds number turbulence, though their uniformity and isotropy were not so good., 資料番号: AA0049208023, レポート番号: JAXA-SP-05-012
- Published
- 2006