Spatial Scaling Effect of Interfacial Tension and Contact Angle on Interfacial Motion in Three-Fluid Dam Break

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  • 三流体ダム崩壊の界面移動における接触角および界面張力の寸法効果
  • サンリュウタイ ダム ホウカイ ノ カイメン イドウ ニ オケル セッショクカク オヨビ カイメン チョウリョク ノ スンポウ コウカ

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Abstract

VOF numerical simulations were conducted for a three-fluid dam break problem to investigate the scaling effect on mixing and stratification processes of three immiscible fluids by gravity. Two liquids (silicone oil and salt water) were initially separated with a vertical partition plate and filled in a rectangle container. Computational fluid dynamics analysis was conducted with Star CCM+ version 9.02. The contact angle affects the interfacial motion significantly in a relatively small-scale domain, while the interfacial tension affects it in a relatively large-scale domain.

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