冲砂洗井水力计算方法综述

Brief Review on Hydraulic Calculation Methods of Sand Flushing

本文简要介绍了牛顿一雷廷格、莫尔、斯笃克和刘希圣四种砂粒在液体中沉降求速的计算方法和推导法及模拟实验结果,给出了模拟实验法砂粒净上升速度和冲砂洗井所需最低排量的计算公式,举例计算了五种计算方法的计算结果.它可使有关人员在短时间内了解砂粒在液体中沉降末速计算方法的研究进展情况和五种计算方法的异同点,供有关人员水力计算时参考.

In this paper, we briefly review four methods of calculating the termind setlling velocity of sand in liquids, namely the Newton Rittiger, Mole, Stokes and Liu Xisheng Methods, and the related results of sim-ulating experiments. We present a calculation formula on the net uprising velocity of sand and the minimum amount of dischange for sand flushing of wells in experiments. All the methods are illustrated by numerical ex-amples and their effectiveness is analyzed.