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Published on: May 9, 2021
Numerical simulation of bubble dynamics in an elastic vessel.
Shiping Wang1, Aman Zhang, Yunlong Liu
1College of Shipbuilding Engineering, Harbin Engineering University, 150001, Harbin, China, wangshiping@hrbeu.edu.cn.
This study numerically investigates gas bubble dynamics within an elastic vessel. The findings reveal how elasticity and vessel size influence bubble behavior, validated against experiments and theory.
Area of Science:
- Fluid Dynamics
- Nonlinear Dynamics
- Acoustics
Background:
- Understanding bubble dynamics is crucial in various scientific and engineering fields.
- The influence of vessel elasticity on bubble evolution remains an area requiring detailed numerical investigation.
Purpose of the Study:
- To numerically investigate the nonlinear evolution of a gas bubble within an elastic vessel.
- To analyze the effects of elastic parameters and vessel dimensions on bubble dynamics.
Main Methods:
- Employed a boundary element method (BEM) to solve the Laplace equation for velocity potential.
- Modeled gas behavior using Boyle's Law and incorporated fluid elasticity.
- Derived dynamic boundary conditions using Bernoulli's equation.
Main Results:
- The numerical model was successfully validated against the analytical Rayleigh-Plesset equation and experimental spark bubble data.
- Demonstrated the significant impact of elastic parameters and inner vessel radius on bubble evolution.
Conclusions:
- The developed numerical model accurately simulates gas bubble dynamics in elastic vessels.
- Provides insights into the complex interplay between bubble behavior and vessel mechanical properties.
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