Recirculation Flow and Pressure Distributions in a Rayleigh Step Bearing
Joint Authors
Yan, Cheng-Jin
Dai, Jian-Feng
Shen, Feng
Liu, Zhaomiao
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Flow characteristics in the Rayleigh step slider bearing with infinite width have been studied using both analytical and numerical methods.
The conservation equations of mass and momentum were solved utilizing a finite volume approach and the whole flow field was simulated.
More detailed information about the flow patterns and pressure distributions neglected by the Reynolds lubrication equation has been obtained, such as jumping phenomenon around a Rayleigh step, vortex structure, and shear stress distribution.
The pressure distribution of the Rayleigh step bearing with optimum geometry has been numerically simulated and the results obtained agreed with the analytical solution of the classical Reynolds lubrication equation.
The simulation results show that the maximum pressure of the flow field is at the step tip not on the lower surface and the increment of the strain rate from Navier-Stokes equation is approximately 49 percent greater than that from Reynolds theory at the step tip.
It is also shown that the position of the maximum pressure of the lower surface is a little less than the length of the first region.
These results neglected by the Reynolds lubrication equation are important for designing a bearing.
American Psychological Association (APA)
Shen, Feng& Yan, Cheng-Jin& Dai, Jian-Feng& Liu, Zhaomiao. 2018. Recirculation Flow and Pressure Distributions in a Rayleigh Step Bearing. Advances in Tribology،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1122988
Modern Language Association (MLA)
Shen, Feng…[et al.]. Recirculation Flow and Pressure Distributions in a Rayleigh Step Bearing. Advances in Tribology No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1122988
American Medical Association (AMA)
Shen, Feng& Yan, Cheng-Jin& Dai, Jian-Feng& Liu, Zhaomiao. Recirculation Flow and Pressure Distributions in a Rayleigh Step Bearing. Advances in Tribology. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1122988
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122988