Theoretical Solutions for Dynamic Characteristics of Liquid Annular Seals with Herringbone Grooves on the Stator Based on Bulk-Flow Theory

Table 3

Comparisons between predicted and measured resultant forces.

		Rotating speed (r/min)
		720	1080	1440	1800	2160	2400
Seal 1	Predicted force (N)	0.3595	0.4290	0.4965	0.6122	0.8042	1.0006
	Measured force (N)	0.38	0.46	0.54	0.69	0.96	1.19
	Error (%)	5.4010	6.7447	8.0536	11.2803	16.2262	15.9123
Seal 2	Predicted force (N)	0.9133	0.9252	0.9378	0.9568	0.9745	1.0000
	Measured force (N)	0.88	0.92	0.94	0.97	1.04	1.08
	Error (%)	3.7852	0.5598	0.2362	1.4144	5.9183	7.4046
Seal 3	Predicted force (N)	0.3677	0.4362	0.4978	0.6011	0.7651	0.9370
	Measured force (N)	0.34	0.41	0.51	0.65	0.89	1.15
	Error (%)	8.1564	6.3828	2.3838	7.5167	14.0353	18.5189