2525 長波方程式による薄膜液体表面の時間発展解析 : 極性液体による不安定現象(S79-1 情報機器コンピュータメカニクス(1),S79 情報機器コンピュータメカニクス)

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  • 2525 Time evolution analyses of ultra-thin liquid film surface using long wave equation : Instability phenomena in polar liquids

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To examine behaviors and stabilities of ultra-thin but continuum liquid films, the long wave theory was employed, which is the time-evolution equation for the shape of the thin liquid film and includes surface tensions and surface forces such as the van der Waals (vdW) forces. For lubricants with chain-end functional groups such as Z dol, surface forces acting at the liquid surface depend on the liquid thickness, and the direction of the force changes alternatively with the thickness. In this report stability/instability and time-evolution of the polar lubricant surfaces was numerically analyzed and steady liquid film configurations were obtained.

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