Prediction of the Wall Factor of Arbitrary Particle Settling through Various Fluid Media in a Cylindrical Tube Using Artificial Intelligence

Table 2

Fit of experimental results to the predicted values of a single model.

Correlated	Sum of; squared error; (𝑄)	rms^a; deviation; (devrms)	Sum of squared; relative error; (𝑄rel)	Sum of; relative error; (𝛿)	Correlation; coefficient; (𝛾)	Range analysis: predicted data points; within specified range; of experimental results
						±15%	±10%	±7.5%	±5%
Sphere (train)	0.0051	0.0056	0.0271	1.5262	0.9975	100	100	100	99.38
Sphere (test)	0.0537	0.0315	0.3738	2.0232	0.971	94.45	92.59	88.89	79.63
Cylinder (train)	0.0099	0.0072	0.0529	2.1864	0.9971	100	100	99.47	98.41
Cylinder (test)	0.0272	0.0209	0.1432	2.1089	0.9865	98.39	93.55	90.32	82.26
Rectangular prism (train)	0.0197	0.0241	0.1098	1.56	0.9914	100	91.18	88.24	61.77
Rectangular prism (test)	0.0089	0.0272	0.048	0.5687	0.9922	91.67	83.33	66.67	50

arms indicates root-mean square.