TABLE I.
The parameters and values used to solve the Marmottant model.
| Parameter | Value | Description |
|---|---|---|
| ρL | 998 kg/m3 | Fresh water at 20 °C |
| P0 | 101 kPa | Atmospheric pressure |
| κ | 1.07 | For perflouropropane |
| κs | 32 × 10−9 N for Optison | Optison1 |
| 0.5 × 10−9 N for Definity | Definity2 | |
| c | 1480 m/s | For fresh water at 20 °C |
| µ | 0.002 Pa·s | For 0.30% dextran with 500 kDa (Ref. 3) |
| Pac(t) | Pr cos(2π ft)·0.5·[1 − cos(2π ft/cycle)] | |
| Rbuckling | R0 | 4 |
| χ | 4 N/m for Optison | Optison5 |
| 0.85 N/m for Definity | Definity2 | |
| Rbreakup | Rbuckling(1 + σbreak-up/χ)1/2 | Ref. 4 |
| σbreak-up | 1 N/m | Ref. 4 |
| Rruptured | Rbuckling(1 + σwater/χ)1/2 | Ref. 4 |
| σwater | 0.073 N/m |