An experimental investigation of the effect of groove geometry on the performance of the grooved-shaft viscoseal is being conducted. Using distilled water as the sealed fluid, the concentric and eccentric performance of ten seals has been determined under laminar and turbulent conditions. An approximate method is devised to predict the empirical factors in the turbulent sealing equation. The findings reveal that the optimum seal geometry for laminar operation is not optimum for turbulent conditions, the seal eccentricity has slight effect on performance, and the phenomenon of air ingestion may present a major problem in the application of the viscoseal.

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