Liquid breakup of a water jet
The main goal of this work is to provide an extensive open access image database where fluid mechanics researchers and modellers have access to experimental evidences of the mechanisms responsible for water jet breakups. A single injector orifice of 625 µm in diameter is used and water is injected in quiescent air at ambient temperature and atmospheric pressure conditions. In this study, only the liquid pressure of injection is varied and reach a maximum Reynold number of ~60 000.
While most high-speed videos of liquid breakups are usually based on shadowgraphy imaging, the approach proposed here consists in recording liquid LIF (Laser Induced Fluorescence), which provides faithful images of the formed liquid bodies.
The experiment is divided into two parts: