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Complete vortex shedding suppression allocating twin rotating controllers at a suitable position

机译:完全抑制涡流脱落,将双旋转控制器分配在合适的位置

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摘要

Vortex shedding decreases the lifetime of a cylinder exposed to a cross flow. Vortex shedding deficiencies may decrease when using rotating controllers near the cylinder. Vortex shedding suppression depends on the flow regime, geometrical and kinematic characteristics of the rotating controller. A numerical simulation based on the finite volume approach has been used to study the impact of the position of the twin rotating controllers on the rate of vortex shedding suppression at a particular laminar flow regime when the angular velocity of the control system is fixed. Obtained results illustrate that there is a most suppressible position for installing the rotating controller. The most suppressible controller position suppresses vortex shedding completely. It decreases the drag coefficient and vanishes the fluctuation of the torque coefficient.
机译:涡流脱落会缩短气缸承受横流的寿命。在气缸附近使用旋转控制器时,涡流脱落缺陷可能会减少。涡流脱落的抑制取决于旋转控制器的流动状态,几何和运动学特性。当控制系统的角速度固定时,基于有限体积方法的数值模拟已被用于研究双旋转控制器的位置对特定层流状态下涡旋脱落抑制率的影响。获得的结果表明,安装旋转控制器的位置最受抑制。最可抑制的控制器位置完全抑制了涡旋脱落。它减小了阻力系数并消除了扭矩系数的波动。

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