Effects of operating conditions on cavitation induction of spiral groove liquid-film seal (SG-LFS). Issue 10 (9th July 2020)

• Record Type: Journal Article
• Authors: Li, Zhentao; Yin, Xiaoli; Yue, Jixiang; Liu, Fuyu; Hao, Muming; Ren, Baojie
• Is Part Of: Industrial lubrication and tribology. Volume 72:Issue 10(2020)
• Page Start: 1267
• Page End: 1275
• Publication Date: 2020-07-09
• Subjects: Operating conditions -- JFO boundary -- Cavitation degree -- Liquid-film seal; Lubrication and lubricants -- Periodicals; Tribology -- Periodicals; 621.89
• DOI: 10.1108/ILT-03-2020-0083
• Languages: English
• ISSNs: 0036-8792

Abstract

Abstract : Purpose: The purpose of this paper is to study the effects of operating conditions including process coefficient, lubricant viscosity and cavitation pressure on the cavitation of spiral groove liquid-film seal (SG-LFS). Design/methodology/approach: A mathematical model of SG-LFS is established based on the JFO boundary and a relative density is introduced. The universal governing equation after a coordinate transformation is discretized by the FVM method and solved by the Gauss-Seidel relaxation scheme. Findings: The results indicate that the two-dimensional size of cavitation and cavitation degree are affected significantly by the process coefficient and lubricant viscosity but the effect of cavitation pressure can be ignored. Originality/value: The effect mechanisms of operating conditions on the cavitation of SG-LFS are studied by the JFO boundary and cavitation degree characterized by a relative density. The results presented are helpful to perfect and deeply understand the cavitation mechanism of liquid-film seal. Peer review: The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2020-0083/