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| Content Provider | IET Digital Library |
|---|---|
| Author | Yu, Hechun Wang, Guangzhou Ma, Wenqi Zhang, Guoqing Zhao, Zexiang |
| Abstract | In order to improve the pressure distribution, the aerostatic circular thrust bearing with single supply hole was studied. In the computational fluid dynamics (CFD) simulation, the laminar model, the turbulent model, the mixture model of laminar and turbulent were used simultaneously. The micro-characteristics of the gas flows were analysed based on the simulation results. One test rig was built for measuring the pressure distribution with the single test hole, and the calculated and experimental results were compared. The results showed that when the gas film clearance is small and the gas flow is subsonic completely, the whole gas flow is laminar flow, which should be calculated based on the laminar model and when the gas film thickness is large and there is supersonic flow in some region, which should be calculated according to the mixture model; at the same time, there is no surface of discontinuity for Mach number and pressure distribution, and no shock, and the pressure is recovered due to the boundary layer separation, the change of the flow state and the change of viscosity. The method for testing the pressure distributions with a single test hole is effective. |
| Starting Page | 114 |
| Ending Page | 118 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 13, Jan (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8975 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-19 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Aerodynamics Aerostatic Circular Thrust Bearing Applied Fluid Mechanics Boundary Layer And Shear Turbulence Boundary Layer Separation Boundary Layer Turbulence CFD Simulation Computational Fluid Dynamics Computational Method Flow Characteristic Flow Separation Flow Simulation Flow State Fluid Mechanics Gas Film Clearance Gas Film Thickness General Fluid Dynamics Theory General Subsonic Flows Laminar Flow Laminar Flows Laminar Model Mach Number Machine Bearings Mechanical Component Mechanical Engineering MicroCharacteristic Mixture Model Pressure Distribution Simulation Single Supply Hole Single Test Hole Subsonic Flow Subsonic Gas Flow Supersonic And Hypersonic Flows Supersonic Flow Turbulent Model Viscosity |
| Content Type | Text |
| Resource Type | Article |
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