Optimal Design of Diversion Piers of Lateral Intake Pumping Station Based on Orthogonal Test

Table 3

Analysis of variance of flow velocity uniformity.

Source of variance	Deviation sum of squares	Degree of freedom	Variance	Variance ratio	Fa	Significant level
Length	3.992	3	1.331	2.016	F0.01(3,6) = 9.78	o
Width	13.508	3	4.503	6.821	F0.05(3,6) = 4.76
Radian	2.141	3	0.714		F0.1(3,6) = 3.29
Relative height	24.375	3	8.125	12.308	F0.25(3,6) = 1.78
Error	1.820	3	0.607