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Keywords: bubbles
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Journal Articles
Article Type: Technical Briefs
J. Tribol. April 2009, 131(2): 024501.
Published Online: March 4, 2009
...Jérôme Gehannin; Mihai Arghir; Olivier Bonneau This work is intended to evaluate a cavitation model based on the complete Rayleigh–Plesset (RP) equation for use in squeeze film damper calculations. The RP equation governs the variation in the radius of the cavitation bubbles at rest, surrounded...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011704.
Published Online: December 2, 2008
...Thomas Geike; Valentin L. Popov The negative squeeze lubrication problem is investigated by means of numerical simulations that account for the dynamics of vaporization. The model is based on bubble dynamics, governed by the Rayleigh–Plesset equation, and the Reynolds equation for compressible...
Journal Articles
Article Type: Technical Papers
J. Tribol. April 2002, 124(2): 346–350.
Published Online: February 5, 2001
.... , and San Andre´s , L. , 1999 , “ Reduction of the Dynamic Load Capacity in a Squeeze Film Damper Operating with a Bubbly Lubricant ,” ASME J. Eng. Gas Turbines Power , 121 , pp. 703 – 709 . Diaz, S., and San Andre´s, L., 1999, “Air Entrainment versus Lubricant Vaporization in Squeeze Film Dampers...
Journal Articles
Article Type: Technical Papers
J. Tribol. January 2001, 123(1): 125–133.
Published Online: September 19, 2000
...Sergio Diaz; Luis San Andre´s Squeeze film dampers ( SFDs ) reduce vibrations and aid in suppressing instabilities in high performance rotor-bearing systems. However, air ingestion and entrapment, pervasive in open-ended dampers with low supply pressures, leads to a bubbly lubricant that severely...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2001, 123(3): 494–500.
Published Online: June 30, 2000
... of the cavity gas bubble by a thin lubricant film dragged through the cavitation zone by the rotating shaft and (2) the mass transfer mechanism which dictates the rate of diffusion of dissolved gas out of and back into the lubricant. A comparison with available experimental results reveals that while...
Journal Articles
Article Type: Technical Papers
J. Tribol. January 2000, 122(1): 205–210.
Published Online: June 29, 1999
... is drawn into the damper thin film clearance generating a bubbly mixture with the lubricant and producing SFD forces not readily predictable with currently available analysis. A continuum model is proposed for describing the motion of a bubbly fluid in an open ended SFD operating with circular centered...