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作者用数理统计方法求出了尼库拉则-卡门方程的近似求解公式.用新的近似式计算光滑管摩擦系数比原公式简单.在整个公式适用范围内,近似式与原式计算值之间的最大相对误差的绝对值不超过0.7%.
The author uses mathematical statistics method to get the Nikkulah-Carmen equation approximate solution formula.With the new approximate formula to calculate the friction coefficient of the smooth tube is simpler than the original formula.In the entire scope of the formula, the approximate formula and the original calculated value The absolute value of the maximum relative error between no more than 0.7%.