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Notation
| Symbol | Definition |
|---|---|
| c | Speed of sound in liquid |
| P | Time-dependent pressure |
| Pdriv(t) | Time-varying acoustic pressure |
| P0 | Hydrostatic pressure |
| R | Instantaneous bubble radius |
| &Rdot; | Velocity of bubble wall |
| &Ruml; | Acceleration of bubble wall |
| R0 | Initial bubble radius |
| χ | Elasticity modulus of lipid shell |
| ɛ | Thickness of lipid shell |
| ρ | Liquid density |
| μ | Medium viscosity |
| μsh | Viscosity of lipid shell |
| σ | Surface tension coefficient |
| γ | Polytropic gas exponent |
| r | distance from bubble |
