来源	经验方程	参数范围
Damerow [28]	$f = [2 .0 6 {(S_{x} / D)}^{- 1.1}] R e_{D}^{- 0.16}$	$2 \leq H / D \leq 4$
Metzger [26]	$f = 0.31 7 R e_{D}^{- 0.132}$	$1000 < R e_{D} < 10000$
Metzger [26]	$f = 1.76 R e_{D}^{- 0. 318}$	$10000 < R e_{D} < 100000$ $H / D = 1.0$ ; $S_{y} / D = 2.5$ ; $1.5 \leq S_{x} / D \leq 5$
Uzol [22]	$f = 0. 3849 R e_{D}^{- 0.0 6588}$	$18000 < R e_{D} < 86000$ $H / D = 1.5$ ; $S_{x} / D = S_{y} / D = 2.0$ ;
Jacob [29]	$f = (0.25 + \frac{0.1175}{{(S_{y} / D - 1)}^{1.08}}) R e_{D}^{- 0.16}$	$H / D > 2.0$ ; $R e_{D} < 20000$
Chilton [30]	$f = 0. 33 R e_{D}^{- 0. 2}$	$50 \leq R e_{D} \leq 20000$ $H / D > 4.0$ ; $1.25 \leq S_{x} / D \leq 5.0$ ;
Olson [27]	$f = 0. 8561 R e^{- 0. 2160}$	$2500 < R e < 12000$ $0. 25 \leq H / D \leq 0. 5$