On spherical vapor bubble collapse in viscoelastic fluids

Christian Lang,Mengqi Zhang,Steffen J. Schmidt,Nikolaus A. Adams

Applied Mathematical Modelling（2023）

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摘要

•Compressible 3D finite-volume homogeneous mixture model for viscoelastic two-phase cavitating flows.•Unsteady numerical simulations of viscoelastic vapor bubble collapse.•Collapse dynamics, stress evolution and distribution for different viscosities, relaxation times and viscoelastic models.•Introduction of isotropic viscoelastic stresses by constitutive model.•Shock wave emission for complete collapse before rebound.

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关键词

Viscoelasticity, Bubble collapse, Multiphase flows, Computational fluid dynamics, Numerical simulation, Complex fluids

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