An Experiment-Based Simplified Method for the Model of Building Groups in CFD Simulation

Table 8

Variance analysis of the orthogonal experiment.

Column no.	SS	df	MS	F	Significance (α = 0.05)
①	0.00128464	3	0.0004282	25.99792	Outstanding
②	0.000613442	3	0.0002045	12.41453	Outstanding
③	0.002761893	3	0.0009206	55.89385	Outstanding
④	0.000639416	3	0.0002131	12.94018	Outstanding
⑤	4.94132E − 05	3	1.647E − 05	1

Note: SS_j is the sum of the square of deviations on the same column j (j = ①, ②, ③, ④, and ⑤) in the orthogonal table, representing the difference of experiment results; df_j represents the degree of freedom, equal to the number of factor levels with minus 1; MS_j is the average value of SS_j, equal to SS_j/df_j; F equal to MS_j/MS_⑤ is to evaluate the significance of each factor.