首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >DEFORMATION AND STABILITY ANALYSIS OF ULTRA-THIN LUBRICANT FILMS BY THE LONG WAVE EQUATION (ANALYSIS CONSIDERING THE VAN DER WAALS FORCE AND GAS PRESSURE AT THE LIQUID SURFACE)
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DEFORMATION AND STABILITY ANALYSIS OF ULTRA-THIN LUBRICANT FILMS BY THE LONG WAVE EQUATION (ANALYSIS CONSIDERING THE VAN DER WAALS FORCE AND GAS PRESSURE AT THE LIQUID SURFACE)

机译:长波方程对超薄润滑油膜的变形和稳定性分析(考虑范德华力和液面气体压力的分析)

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摘要

To examine deformations of ultra-thin but continuum liquid film, the long wave theory was employed, which is the time-evolution equation for the shape and deformation of the thin liquid film and includes the surface tension and surface forces such as the van der Waals (vdW) force. By solving the linearized long wave equation considering the vdW pressure and gas pressures at the lubricant surface, deformations of the ultra-thin lubricant film caused by air pressure were obtained. Stability/instability of the liquid surface was analyzed as the growth and decay problem of the infinitesimal deformation of the liquid surface.
机译:为了检查超薄但连续的液膜的变形,采用了长波理论,它是液膜形状和变形的时间演化方程,包括表面张力和表面力,例如范德华力(vdW)力量。通过考虑润滑剂表面的vdW压力和气压来求解线性长波方程,获得了由气压引起的超薄润滑剂膜的变形。分析了液体表面的稳定性/不稳定性,作为液体表面无限微小变形的增长和衰减问题。

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