A fluid-structure-thermal model for bump-type foil thrust bearings
Article
Article Title | A fluid-structure-thermal model for bump-type foil thrust bearings |
---|---|
ERA Journal ID | 3721 |
Article Category | Article |
Authors | Qin, Kan, Jacobs, Peter A., Keep, Joshua A., Li, Daijin and Jahn, Ingo H. |
Journal Title | Tribology International |
Journal Citation | 121, pp. 481-491 |
Number of Pages | 11 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0301-679X |
1879-2464 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.triboint.2018.02.008 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0301679X18300859 |
Abstract | This paper presents a multi-physics multi-timescale computational framework for the three-dimensional and two-way coupled fluid-structure-thermal simulation of foil thrust bearings. Individual solvers for the transient fluid flow, structural deformation, heat conduction and the coupling strategy are discussed. Next, heat transfer models of the solid structures within foil thrust bearings are also described in detail. The result is a multi-physics computational framework that can predict the steady state and dynamic performance of foil thrust bearings. Numerical simulations of foil thrust bearings with air and CO2 are then performed. It is found that the centrifugal pumping that naturally occurs in CO2 bearings due to the high fluid density provides a new and effective cooling mechanism for the CO2 bearing. |
Keywords | Foil thrust bearings; Multiphysics simulation; Supercritical CO2 cycle; Groove effect |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 4012. Fluid mechanics and thermal engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Northwestern Polytechnical University, China |
University of Queensland |
https://research.usq.edu.au/item/z2173/a-fluid-structure-thermal-model-for-bump-type-foil-thrust-bearings
21
total views0
total downloads1
views this month0
downloads this month