...Wen-Ming Zhang; Guang Meng; Zhi-Ke Peng; Di Chen A mathematical model of gaseous slip flow in ultra-thin film gas bearings is numerically analyzed incorporating effects of surface roughness, which is characterized by fractal geometry. The Weierstrass-Mandelbrot (W-M) function is presented...

... the corresponding solution. This algorithm can also be used for any generalized double Newtonian shear thinning Carreau law. 02 06 2010 17 03 2011 25 07 2011 convection elongation film flow liquid films non-Newtonian flow shear flow slip flow viscosity non-Newtonian lubricant...

... simulation machine bearings microfluidics micromechanical devices slip flow viscosity slip velocity boundary micro gas journal bearings effective viscosity reference Knudsen number The gas rarefaction effect must be considered when the Knudsen number (the ratio between gas molecular...

... sliding friction mechanical contact lubrication surface roughness hydrodynamics slip flow liquid slip low-load friction hydrodynamic lubrication lyophobic surface It is almost universally assumed in fluid mechanics that there is “no slip at the wall;” i.e., that the fluid...

... velocity differences. lubricants cellular automata granular flow lubrication stiction slip flow 08 03 2005 11 12 2005 2006 American Society of Mechanical Engineers ...

... at Inlet Limiting Shear Stress Wall Slippage lubrication elastodynamics hydrodynamics stratified flow slip flow lubricating oils liquid films discs (structures) viscosity sliding friction rheology 01 March 2004 16 December 2004 07 04 2005 Contributed...

... 06 2003 lubrication slip flow film flow flow simulation elasticity stress analysis surface topography non-Newtonian fluids Due to an increased knowledge of lubricant rheology in combination with better performing computers and more advanced numerical methods, more and more...

.... 120 – 130 . Mitsuya , Y. , 1993 , “ Modified Reynolds Equation for Ultra-Thin Film Gas Lubrication Using 1.5-Order Slip-Flow Model and Considering Surface Accommodation Coefficient ,” ASME J. Tribol. , 115 , pp. 289 – 294 . Kennard, E. H., 1938, Kinetic Theory of Gases , McGraw-Hill...

... Lubrication Using 1.5-order Slip-flow Model and Considering Surface Accommodation Coefficient ,” ASME J. Tribol. , 115 , pp. 289 – 294 . Fukui , S. , and Kaneko , R. , 1988 , “ Analysis of Ultra-Thin Gas Film Lubrication Based on Linearized Boltzmann Equation: First Report-Derivation...

... received by the Tribology Division February 2, 2001; revised manuscript received July 6, 2001. Associate Editor: L. San Andre´s. 02 February 2001 06 July 2001 lubrication magnetic disc storage rough surfaces slip flow The important aspect of lubrication with very thin gas...

... friction plastic deformation materials preparation slip flow A second friction (Region II) regime in Fig. 7 appears to develop when 1.0 < τ k < 1.7 . Region II is characterized by a substantial decrease in the friction coefficient with increasing τ k...

... is reduced, since the air inside the pump housing is pumped out by herringbone-grooved viscous vacuum action. In this paper, the theoretical pumping characteristic of this bearing is investigated, using the narrow-groove theory and accounting for first-order slip flow. The effects of various design...

... January 1999 01 June 1999 powders lubrication granular flow machine bearings tribology shear deformation slip flow Recent advances in high-temperature powder lubrication have raised a considerable amount of interest in understanding the flow characteristics of granular powder...