...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...

... devices slip flow viscosity slip velocity boundary micro gas journal bearings effective viscosity reference Knudsen number In this paper, we have proposed a modified Reynolds equation for micro gas journal bearings, based on effective viscosity and first order slip velocity boundary...

... 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...

... are multicomponent particulate flows that have also been modeled using lattice-based approaches ( 42 43 ). 08 03 2005 11 12 2005 lubricants cellular automata granular flow lubrication stiction slip flow The increased capacity of turbine engines at higher thermodynamic...

... 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 by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY...

... 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...

... 01 October 2002 19 06 2003 lubrication slip flow flow simulation Knudsen flow kinetic theory molecule-surface impact stress analysis Among all the existing compressible lubrication equations, the FK model 1 was previously believed to give the most accurate results...

... (bushings of electrostatic micro motors, micro bearings, magnetic head/disk interfaces, etc.), and their future development. slip flow Couette flow Knudsen flow confined flow lubrication flow simulation molecule-surface impact database management systems Contributed by the Tribology...

... Roughness in the Slip Flow Regime: Approximate Method and Confirmation Experiments ,” ASME J. Tribol. , 111 , pp. 495 – 503 . Patir , N. , and Cheng , H. S. , 1978 , “ An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic Lubrication ,” ASME J...

.... A. Williams. 02 February 2000 12 May 2000 mechanical contact tribology interface phenomena lubrication rolling friction plastic deformation materials preparation slip flow Cross wedge rolling (CWR) is a metal processing technique in which a cylindrical billet is plastically...

... 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...