Engineering suspended particle sprays through controlled cavitation

该项目旨在利用空化作用来设计悬浮在推进剂中的微粉化颗粒喷雾的粒度，并为该过程开发物理机制。了解空化如何影响液相中团聚体的尺寸和喷雾中的液滴尺寸对于开发需要精确控制最终粒度的喷雾装置至关重要。这将通过高分辨率光学成像技术和同步加速器X射线诊断来实现。该项目预计将为吸入和局部药物喷雾剂的应用以及食品的工业喷雾干燥提供物理见解。

This project aims to use cavitation to engineer particle size in sprays of micronised particles suspended in a propellant, and develop a physical mechanism for this process. Understanding how cavitation affects the size of agglomerates in the liquid phase and droplet size in a spray is critical to developing spray devices that require precise control over the final particle size. This will be achieved through high-resolution optical imaging techniques and synchrotron X-ray diagnostics. This project is expected to provide physical insight with applications for inhaled and topical pharmaceutical sprays, and industry spray drying of food products.