Title :
Motion of air bubbles in grooved journal bearing
Author :
Jung, K.M. ; Jung, YoungHoon ; Lee, J.H. ; Jang, Gun Hee
Author_Institution :
PREM, Hanyang Univ., Seoul, South Korea
fDate :
Oct. 31 2012-Nov. 2 2012
Abstract :
This paper investigates the motion of air bubbles in grooved journal bearing due to operating speed and groove by using the finite volume method and the volume of fluid method. It shows that the surface tension and wall adhesion of groove are dominant effect on the motion of a trapped air bubble in fluid lubricant of journal bearing at low operating speed. It also shows that the wedge effect of groove is dominant effect on the motion of a trapped air bubble at high operating speed.
Keywords :
adhesion; bubbles; finite volume methods; lubricants; machine bearings; surface tension; two-phase flow; air bubble motion; finite volume method; fluid lubricant; grooved journal bearing; operating speed; surface tension; trapped air bubble; volume of fluid method; wall adhesion; wedge effect; Atmospheric modeling; Finite volume methods; Fluids; Lubricants; Numerical models; Solid modeling; Surface tension; air bubble; fluid dynamic bearings (FDBs); journal bearing; two-phase flow;
Conference_Titel :
APMRC, 2012 Digest
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-4734-1
