Improved model for high-pressure airgun bubble dynamics and its application
This study introduces an improved physical model for high-pressure seismic airgun bubbles,which takes into account various factors,such as fluid compressibility,mass transport,and heat transfer.Our model's pressure wave signals align well with experimental data,showcasing the superiority of this approach over conventional theories.The study examines the impact of characteristic parameters on single or double-airgun bubble dynamics and pressure fields.The findings reveal that the port opening process plays a crucial role in simulating the primary pulse of the pressure wave,while the effect of airgun translational motion on bubbles is negligible.Non-synchronous airgun firing can decrease high-frequency energy in the pressure wave while preserving low-frequency energy.The outcomes of this research may contribute to the development of new airguns for deep-sea exploration.