【摘要】 针对直角弯管均匀流动,采用计算流体动力学(CFD)的方法,对管道中的流动情况进行数值模拟,研究弯管局部水头损失随雷诺数和相对曲率半径的变化规律。结果表明:局部阻力系数随雷诺数和曲率半径呈现不同的变化规律,研究结果可为研究同类流体力学问题提供一定的参考。更多还原

【Abstract】 In view of the uniform flow in the right angle elbow,the method of computational fluid dynamics(CFD)is used to simulate the flow in the pipeline. The variation law of the local head loss of elbow flow with the Reynolds number and the relative curvature radius are studied. The result shows that the local resistance coefficient presents different variation law with Reynolds number and relative curvature radius. The research result can provide a valuable reference for similar study work of hydrodynamics problems.更多还原