Affiliation:
1. Ferrofluidics Corp., 40 Simon St., Nashua, NH 03061
Abstract
Several different configurations of single-stage ferrofluidic seals were tested on a spindle which was capable of operating at very high rotational speeds (up to 55 KRPM). A dimensionless number based on the ratio of magnetic force to centrifugal force was defined. It was discovered that this ratio is not a good predictor of high speed seal failure. Reynolds number was found to be a better predictor of seal failure; therefore an empirically derived model for predicting seal failure based on Reynolds number is proposed. The data herein may provide a basis for developing new theoretical models for ferrofluidic seal failures at high speed.
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Reference5 articles.
1. Cheremisinoff, N., 1986, Encyclopedia of Fluid Mechanics, Gulf Publishing Co., Houston, Vol. 1, Chapter 9.
2. Mitsuya
Y.
, TomitaK., and HosoyaM., 1993, “Experimental Study on Splashing Characteristics of Magnetic Fluid in a Magnetic Fluid Seal,” Journal of Magnetism and Magnetic Materials, Vol. 122, pp. 420–423.
3. Ozaki
K.
, and FujiwaraT., 1987, “An Experimental Study of High-Speed Single Stage Magnetic Fluid Seals,” Journal of Magnetism and Magnetic Materials, Vol. 65, pp. 382–384.
4. Raj
K.
and MoskowitzR., 1990, “Commercial Applications of Ferrofluids,” Journal of Magnetism and Magnetic Materials, Vol. 85, pp. 233–245.
5. Rosensweig, R., 1985, Ferrohydrodynamics, Cambridge University Press, Cambridge.
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献