Abstract:In order to research upstream riser’s effect on downstream riser different conditions, we design a device which can inhibit the upstream vortex by model test method. The experiments concentrate on the vortex-induced vibration of isolated upstream riser and it with improved variety equipment under different flow rate, different spacing conditions. Analysis the impact on downstream riser result from upstream riser through researching vortex shedding and measuring model vibration with inhibit vortex device or not. After that, we conclude that downstream riser is different to isolated standpipe under the influence of upstream standpipe. The lateral vibration of the downstream riser have minimum like arch with tube spacing increases without any inhibit device, while it become stable after some tube diameter with the improved variety equipment.
关德宝;黄维平;宋虹;田会元;耿翱翔;魏立波 . 串列圆柱体尾流和尾涡耦合振动试验研究[J]. , 2014, 33(22): 26-29.
GUAN De-bao;HUANG Wei-ping;SONG Hong;TIAN Hui-yuan;GENG Ao-xiang;WEI li-bo. Experimental investigation of wake flow and wave-vortex coupling induced vibration of two tandem and cylinders. , 2014, 33(22): 26-29.