Experimental Study on the End Effect and the Effect Due to the Difference in End Shape of the Fluid Force Acting on a Rotating Cylinder in a Uniform Flow

Masahiro Suzuki, T. Ikoma, Y. Aida, C. Rheem
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引用次数: 1

Abstract

When investigating the characteristics of the fluid force acting on a rotating cylinder in a flow, three-dimensional effects such as edge shape and walls become a problem. In this paper, we investigated the fluid force characteristics of the rotating cylinder, as well as the effect of the flow under the end of the cylinder and the shape of the cylinder end in the water tank experiment. There are three types of experimental conditions: No end flow condition, end flow condition, and condition with end plate. There are five disk-shaped end plates with different diameters, and the changes in fluid force are quantitatively summarized for each ratio between the diameter of the cylinder model and the end plate. By generating a flow under the end of the cylinder, the fluid force is significantly reduced compared to the no end flow condition. By attaching the end plate, the fluid force does not decrease even when a flow is generated under the end of the cylinder. The fluid force increases until the ratio DE/D of the diameter D of the cylinder model and the diameter DE of the end plate is around 3, but after that, it shows a constant value.
均匀流动中作用于旋转圆柱的流体力末端效应及端形差异效应的实验研究
在研究流体中作用在旋转圆柱上的流体力的特性时,边缘形状和壁面等三维效应成为一个问题。本文在水箱实验中研究了旋转筒体的流体受力特性,以及筒体端部下流量和筒体端部形状的影响。实验工况有三种:无端流工况、端流工况和带端板工况。有5个不同直径的盘状端板,并定量总结了圆柱模型与端板直径的每个比值下流体力的变化。通过在气缸末端产生流动,与无端流条件相比,流体力显着降低。通过附加端板,即使在气缸末端下产生流动,流体力也不会减小。流体力逐渐增大,直至圆柱模型直径D与端板直径DE之比DE/D为3左右,但此后呈恒定值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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