AM06-03-007 渦度プローブによる平行平板間クエット乱流中における大規模縦渦構造の測定(乱流渦構造(2),一般講演)

概要

論文の詳細を見る
In order to investigate large-scale streamwise vortical structures in a turbulent Couette flow, a vorticity-probe has been developed. The effects of the probe-size and mean-shear on the probe-performance are discussed. The final probe performance was estimated by measuring the fluctuating velocity and vorticity components in turbulent Poiseuille flow and comparing them with DNS and/or LDV measurements. The probe is comfirmed to have enough performance for measuring the turbulence quantities like u'_i, w'_i <w'_ju'_i>^^^- in the core region of turbulent Couette flow at Re_γ≈190. Preliminary measurements of <w'_1u'_3>^^^- revealed that the introduction of a Vortex-Generator in turbulent Couette flow have a promising effect on getting reliable data.
日本流体力学会の論文
2006-09-05