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NEW APPROXIMATE EQUATION OF DRAG COEFFICIENT FOR SPHERICAL PARTICLES

机译:球形颗粒阻力系数的新近似方程

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References(9) Cited-By(10) An approximate equation for the drag coefficient of spherical particles is proposed in the form of a quadratic equation in logarithmic co-ordinates. The constants of the equation have been determined by the least square method from experimental values5). This equation gives better agreement with experimental values than the equations proposed previously by other authors. The constants of the equation and the comparison of its accuracy are summarized in Tables I and 2. This equation is valid even at Reynolds numbers between O and 70, 000, the standard deviation of the relative error being 5%.
机译:参考文献(9)By(10)以对数坐标的二次方程形式提出了球形颗粒阻力系数的近似方程。该方程的常数已通过最小二乘法从实验值中确定5)。与其他作者先前提出的方程式相比,该方程式与实验值具有更好的一致性。表I和表2汇总了该方程式的常数及其精度的比较。该方程式即使在雷诺数为O到70,000时也有效,相对误差的标准偏差为5%。

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