管内多孔板からの渦放出に伴う圧力脈動 : ロックイン現象に関与する因子(機械力学,計測,自動制御)

概要

論文の詳細を見る
The pressure fluctuation caused by the ring vortex shedding from a perforated plate with some holes installed in a pipe was investigated experimentally. Measurements were made using pressure transducers at Reynolds numbers from 6.74×10^3 to 4.02×10^4 based on the velocity through the hole. A lock-in phenomenon is affected significantly by the flexural rigidity of the perforated plate. When this phenomenon occurs, the amplitude of the pressure fluctuation increases markedly. While the velocity range generating the lock-in phenomenon shifts to a higher velocity as the plate thickness increases, the frequency of the pressure pulsation is independent of it. It was also found that the pipe length both upstream and downstream of the plate exerts a great influence.
一般社団法人日本機械学会の論文
1997-06-25