Calculation of surface roughness effects on air-riding seals
Guardino, C, Chew, JW and Hills, NJ (2002) Calculation of surface roughness effects on air-riding seals American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI, 3 B. pp. 795-803.
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Abstract
The effects of surface roughness on air-riding seals are investigated here using the Rayleigh-pad as an example. Both incompressible and compressible flows are considered using both CFD analysis and analytical/numerical solutions of the Reynolds equation for various 2D or 3D roughness patterns on the stationary wall. A 'unit-based' approach for incompressible flows has also been employed and is shown to be computationally much less expensive than the full-geometry solution. Results are presented showing the effect of surface roughness on the net lift force. The effects of varying the Reynolds number are demonstrated, as well as comparative results for static stiffness.
Item Type: | Article |
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Divisions : | Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences |
Authors : | Guardino, C, Chew, JW and Hills, NJ |
Date : | 2002 |
DOI : | 10.1115/GT2002-30246 |
Depositing User : | Symplectic Elements |
Date Deposited : | 28 Mar 2017 15:50 |
Last Modified : | 06 Jul 2019 05:10 |
URI: | http://epubs.surrey.ac.uk/id/eprint/712731 |
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