Abstract
Three-dimensional numerical simulations are performed for the interaction of a hot melt droplet with water. Three-phase melt-water–vapor flows are described by the Volume-of-Fluid (VOF) model implemented in OpenFOAM software. In the calculations, initially non-moving and moving melt droplets were considered. Interaction was triggered by sharp increase in water pressure, leading to collapse of the vapor film. It is shown that melt droplet motion with respect to water affects the fragmentation mechanism. For a non-moving droplet, symmetrical collapse occurs, followed by melt surface perturbation and ejection of small melt jets. The estimated diameter of vapor bubble agrees with experimental observations on single droplet steam explosions. For moving droplets, asymmetric vapor bubble collapse generates a high-speed cumulative water jet penetrating into the droplet and fragmenting it. The effect of initial droplet velocity is investigated, and comparison of melt droplet shapes and surface areas for moving and non-moving droplets is presented.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
