Viscoelastic Influence on Cavitating Bubble Dynamics

ABSTRACT

Many engineering applications involving cavitating bubbles, especially biomechanical, biomedical and polymer processing applications, incorporate materials that behave viscous as well as elastic. This viscoelastic behavior can crucially influence cavitation dynamics and alter the resulting erosion impact and damage. The focus of my research lies on the development of methods to simulate compressible, viscoelastic, cavitating flows, and the investigation of the impact of viscoelasticity on vapor bubble collapse dynamics. The talk is intended to give a short introduction of the research activities of our institute, introduce the approach for the simulation of viscoelastic, cavitating flows and to present some selected results of the viscoelastic influence on cavitating bubble dynamics. It will be shown that the elasticity of the fluid and the choice of the viscoelastic model have a distinct influence on the collapse dynamics.

Bachelor of Science, Automotive Engineering and Internal Combustion Engines, Technical University of Munich
Master of Science, Mechanical Engineering (Focus: Continuum and Fluid Mechanics, Thermodynamics, Numerical Simulation), Technical University of Munich
Currently: Ph.D. Candidate/Research assistant, Chair of Aerodynamics and Fluid Mechanics, Technical University of Munich
o Viscoelastic flows, Constitutive Modelling
o Cavitation
o Computational Fluid Dynamicss
o Teaching assistant for Fundamentals of Fluid Mechanics