Sim, Kyuho Kim, Tae Ho 2024-01-20T15:03:39Z 2024-01-20T15:03:39Z 2021-09-05 2012-04 0301-679X https://pubs.kist.re.kr/handle/201004/129391 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. (C) 2011 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD PAD JOURNAL BEARINGS HEAT-TRANSFER Thermohydrodynamic analysis of bump-type gas foil bearings using bump thermal contact and inlet flow mixing models Article 10.1016/j.triboint.2011.11.017 1 TRIBOLOGY INTERNATIONAL, v.48, pp.137 - 148 TRIBOLOGY INTERNATIONAL 48 137 148 scie scopus 000302394700019 2-s2.0-84857235585 Engineering, Mechanical Engineering Article PAD JOURNAL BEARINGS HEAT-TRANSFER Gas foil bearings (GFBs) Thermohydrodynamic (THD) analysis Thermal contact resistance (TCR) Inlet flow mixing