Thermohydrodynamic analysis of bump-type gas foil bearings using bump thermal contact and inlet flow mixing models

Title
Thermohydrodynamic analysis of bump-type gas foil bearings using bump thermal contact and inlet flow mixing models
Authors
심규호김태호
Keywords
Gas foil bearings (GFBs); Thermohydrodynamic (THD) analysis; Thermal contact resistance (TCR); Inlet flow mixing
Issue Date
2012-04
Publisher
Tribology international
Citation
VOL 48, 137-148
Abstract
Implementation of gas foil bearings (GFBs) in high-temperature applications requires a reliable thermal model that accounts for heat transfers within the rotor−GFB system. The proposed thermohydrodynamic (THD) model takes into account energy transports in air film, heat conductions of shaft, thermal resistance of bump layer, and heat conduction in GFB housing. The model also incorporates analytical models for bump thermal contact and inlet flow mixing to improve the prediction accuracy. Published experimental test data benchmark the THD model predictions. Finally, this paper proposes a new GFB cooling scheme, i.e., supplying a cooling flow radially into the inlet flow mixing zone.
URI
http://pubs.kist.re.kr/handle/201004/42330
ISSN
0301679X
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE