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Cavitation induced by explosion in an ideal fluid model.
1The James Franck Institute, The University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, USA. josseran@bernoulli.uchicago.edu
Summary
An explosion in a cubic-quintic superfluid model can create cavitation bubbles, explaining rebound phenomena in superfluids. Energy loss between rebounds is identified as radiated waves.
Area of Science:
- Condensed Matter Physics
- Quantum Fluids
- Superfluidity
Background:
- Superfluid models are crucial for understanding quantum fluid dynamics.
- Explosive events in superfluids can lead to complex phenomena like bubble formation.
- Experimental observations of rebound bubbles in superfluids require theoretical explanation.
Purpose of the Study:
- To investigate the occurrence of explosions in the cubic-quintic superfluid model.
- To numerically demonstrate the induction of cavitation bubbles by explosions.
- To provide a consistent theoretical framework for rebound bubbles in superfluids.
Main Methods:
- Numerical simulations of the cubic-quintic superfluid model.
- Analysis of energy dynamics during explosive events.
- Computation of self-similar solutions for early-stage explosions.
Main Results:
- Explosions in the cubic-quintic superfluid model can induce cavitation bubbles at high energies.
- Energy loss between successive bubble rebounds is attributed to radiated waves.
- Self-similar solutions reveal the wave number of excitations emitted via shock waves.
Conclusions:
- The study provides a consistent explanation for rebound bubbles in superfluids.
- Radiated waves are identified as the mechanism for energy dissipation in successive rebounds.
- The findings offer insights into shock wave dynamics and excitation emission in superfluid explosions.