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Keywords: compressible flow
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Journal Articles
Article Type: Research Papers
J. Tribol. April 2011, 133(2): 021702.
Published Online: March 18, 2011
... compressible flow computational fluid dynamics conjugate gradient methods differential equations Newton method Reynolds equation air bearing gas bearing iterative method Simulation of an air- or gas-lubricated bearing requires the solution of compressible-fluid Reynolds equation. Due...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2010, 132(3): 031701.
Published Online: June 4, 2010
... compressibility compressible flow liquid films lubrication micromechanical devices lubrication squeeze film microsystems MEMS inertia effects In several recent experiments on microsystem devices involving the squeezing of a liquid film, researchers have found results that appear...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2009, 131(4): 041706.
Published Online: September 23, 2009
... 07 2009 23 09 2009 compressible flow friction lubrication machine bearings numerical analysis piezoelectric actuators ultrasonics vibrations aerodynamic bearing squeeze-film gas bearing linear motion guide moving table impulse response dynamic behavior Figure 4...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011704.
Published Online: December 2, 2008
... fluids. Unlike most existing simulation models our model can predict tensile stresses in the fluid film prior to its rupture, which is in accordance with experimental evidence. 24 01 2008 29 08 2008 02 12 2008 bubbles cavitation compressibility compressible flow...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2008, 130(3): 031101.
Published Online: June 23, 2008
... on, or for optimizing multiple parameters in combination. The application of the method to solve such problems will be considered in the future. 10 08 2007 25 03 2008 23 06 2008 compressible flow elasticity machine bearings splines (mathematics) bearing geometrical optimum design...
Journal Articles
Article Type: Technical Papers
J. Tribol. October 2007, 129(4): 841–850.
Published Online: March 30, 2007
...Sébastien Thomas; Noël Brunetière; Bernard Tournerie A numerical modeling of thermoelastohydrodynamic mechanical face seal behavior is presented. The model is an axisymmetric one and it is confined to high pressure compressible flow. It takes into account the behavior of a real gas and includes...
Journal Articles
Article Type: Technical Papers
J. Tribol. April 2007, 129(2): 407–410.
Published Online: November 18, 2006
... materials processing elasticity compressible flow lubrication hydrostatic seal film stiffness laser surface texturing design efficiency parameter One main objective in noncontacting mechanical seals is to provide minimal leakage and friction losses during operation. This may be achieved...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2006, 128(4): 771–777.
Published Online: July 18, 2006
... particles on thermoelastohydrodynamic lubrication under heavy load conditions. 24 02 2004 18 07 2006 elastodynamics hydrodynamics lubrication non-Newtonian fluids lubricants compressible flow mechanical contact sliding friction numerical analysis temperature distribution...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2006, 128(2): 396–405.
Published Online: December 12, 2005
... that when the flow is choked, the mass flow rate is reduced and the behavior of the seal becomes unstable. seals (stoppers) compressible flow Navier-Stokes equations The increase in operating pressure, temperature, and sliding speed in gas turbines and compressors led to the development...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2006, 128(2): 345–350.
Published Online: November 3, 2005
... the value of h p = 50 μ m is the maximum possible depth of a hemispherical dimple. 10 04 2005 03 11 2005 hydrostatics lubrication laser materials processing surface texture Navier-Stokes equations compressible flow surface texturing gas lubrication Reynolds...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2004, 126(4): 733–737.
Published Online: November 9, 2004
... and applied to compressible flow problems. The purpose of this paper is the development of a special form of Reynolds equation for such homogenized conditions applied to the incompressible Newtonian case. The equation allows the calculation of the operating characteristics of a contact by taking into account...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2004, 126(4): 781–787.
Published Online: November 9, 2004
... by the Tribology Division January 3, 2002; revised manuscript received March 16, 2004. Associate Editor: S. Wu. 03 January 2002 16 March 2004 09 11 2004 compressible flow turbulence Navier-Stokes equations seals (stoppers) wear Although many labyrinth seals are designed...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2004, 126(3): 542–546.
Published Online: June 28, 2004
..., Advanced Gas Turbine (AGT) Technology Development Project-Final Report, NASA CR-180891. 23 April 2003 11 September 2003 28 06 2004 foils compressible flow hydrodynamics machine bearings Applications of air-lubricated foil bearing have been under extensive investigation...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2003, 125(3): 543–551.
Published Online: June 19, 2003
... considered. The Stokes solutions are supposed to be the more accurate ones. Below the basic equations are presented. It is noted that only two dimensional steady state problems are considered. Two compressible flow model problems are studied. The first problem has a direct relation to applications...
Journal Articles
Article Type: Technical Papers
J. Tribol. April 2003, 125(2): 301–308.
Published Online: March 19, 2003
... February 20, 2002; revised manuscript received July 11, 2002. Associate Editor: M. M. Khonsari. 27 October 2002 20 February 2002 11 July 2002 19 03 2003 machine bearings rotors pressure rotational flow compressible flow confined flow flow simulation turbulence jets...
Journal Articles
Article Type: Technical Notes
J. Tribol. October 2002, 124(4): 858–863.
Published Online: September 24, 2002
... 09 2002 confined flow compressible flow flow simulation pressure force size effect mechanical engineering computing computational fluid dynamics When two circular discs are supplied with air under pressure through a central hole, the lower disc will be attracted or repelled...