Result shows that the dip angle, the towed velocity and reduced velocity are main influence factors to the vortex-induced vibration of a circular cylinder. 结果表明,约化速度、拖缆倾角、拖曳速度等是影响涡激振动的主要因素。
Column performance was evaluated by means of reduced plate height / reduced velocity and separation impedance. 柱性能用折合塔片高度╱折合流速和分离阻抗指标衡量。
Agreement between the numerical results of reduced velocity around an open-water propeller and the measurements is satisfactory. 敞水螺旋桨的脉动速度计算结果与试验结果吻合良好。
In this paper, the method of Multimode Participating and the Single Parameter searching method ( M-S method ) for the three dimensional wind-induced bridge flutter analysis are improved. Automatic search of all possible critical flutter states within the full range of reduced velocity is implemented. 本文进一步完善了桥梁风致颤振三维分析的多模态参与单参数搜索M-S法:实现了无量纲风速范围内多个可能颤振形态的全域自动搜索;