菱形角柱群流路内のフリップ・フロップ流れの特性(流体工学,流体機械)

概要

論文の詳細を見る
The self-excited vortex oscillation or its resulting flip-flop flow has potential applications to various control problems in the fluids engineering field related to environments and thermal energy. Quantitative disclosure of these flow characteristics may contribute to promote research and development of these applications. An experimental study was performed to investigate flow characteristics in diamond-shaped cylinder bundles. The two-dimensional LDV was employed to measure velocity fluctuations in order to quantitatively treat flip-flop flows. The depths of their bundles were varied, and a turbulence mesh was also installed upstream from the inlet of the test section. Special features are disclosed in the relationship between the Reynolds number and the Strouhal number in all power spectra of the flip-flop flow.
社団法人日本機械学会の論文
2004-11-25