节点文献
并列弹性双圆柱在均匀流场中的流体激励力的研究
EXPERIMENTAL RESEARCH FOR FLUID FORCE OF TWO ELASTIC CIRCULAR CYLINDERS IN SIDE BY SIDE ARRANGEMENTS WHEN SUBJECTED TO UNIFORM CROSSFLOW
【摘要】 实验研究了并列弹性双圆柱体在均匀流场中的水动力特性,其中包括柱表面稳态及脉动压力系数,稳态阻力及升力系数,脉动阻力和升力系数,结果表明:V_r>V_(rc)时,柱的振动对其流体激励力有明显影响。
【Abstract】 This paper presents the experimental investigation into hydrodynamicforce of two elastic circular cylinders in side by side arrangements under various gap ratiosT/D in the range of 4.19 ×10 ̄4 < Re < 9.1×10 ̄4. The steady and fluctuating pressuredistributions,steady drag and lift and fluctuating drag and lift force were obtained.Theresults show that as Vr>Vrc,the oscillations of the cylinders affect not only the steadydrag and lift coefficients,but fluctuating drag and lift coefficients as well.There were abruptchanges for hydrodynamic force when T/D is within the critical spacing ratios。
【关键词】 涡激振动;
双柱;
旋涡;
表面压力;
水动力;
雷诺数;
【Key words】 vortex- induced vibration; two cylinders; vortex; surface pressure; hydro-dynamic force; Reynolds number;
【Key words】 vortex- induced vibration; two cylinders; vortex; surface pressure; hydro-dynamic force; Reynolds number;
- 【文献出处】 力学学报 ,ACTA MECHANICA SINICA , 编辑部邮箱 ,1994年01期
- 【分类号】O353.4
- 【被引频次】16
- 【下载频次】153