Engineering Commons^™

Passive Cavity Deflation After Water Entry Facilitated By A Vented Tube, Emma R. Fraley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

When an object enters water, a crater, or air cavity, can form around the object and remain attached as the object travels underwater. Cavities can be beneficial and reduce drag force but there may be times when the cavity needs to be removed. This research proposes a method to remove air cavities by letting air leave the cavity, deflating the cavity similar to how a balloon is deflated. To provide air a path to leave the cavity, a tube with vent holes is attached to the object. The vent holes are located near the object, where the air cavity forms, …