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Shock-bubble Interaction Near a Compliant Tissue-like Material

Shusheng Pan
Chair of Aerodynamics and Fluid Mechanics, Department of Mechanical Engineering, Technical University of Munich Boltzmannstrasse 15, 85748 Garching, Germany

Stefan Adami
Chair of Aerodynamics and Fluid Mechanics, Department of Mechanical Engineering, Technical University of Munich Boltzmannstrasse 15, 85748 Garching, Germany

Xiangyu Y. Hu
Institute of Aerodynamics and Fluid Mechanics, Technische Universitat Munchen, 85748 Garching, Germany

Nikolaus A. Adams
Chair of Aerodynamics and Fluid Mechanics, Department of Mechanical Engineering, Technical University of Munich, 85748 Garching bei München, Germany

Sinopsis

In this work, we present numerical simulation results for shock-induced bubble collapse dynamics near tissue-like compliant gelatin phase. We use a sharp-interface model for multiple materials to represent the ambient liquid (water), the non-condensable gas phase (air) and the gelatin phase. Employing multi-resolution techniques, we investigate the complex interface dynamics and compare the results with experimental data from literature. Our aim is to understand and quantify the mechanisms observed during extracorporeal shock-wave lithotripsy or sonoporation. Therefore, latestage dynamics of the bubble collapse and tissue penetration are presented.