Multiscale simulations of primary atomization

Multiscale simulations of primary atomization

A liquid jet upon atomization breaks up into small droplets that are orders of magnitude smaller than its diameter. Direct numerical simulations of atomization are exceedingly expensive computationally. Thus, the need to perform multiscale simulations. In the present study, we performed multiscale simulations of primary atomization using a Volume-of-Fluid (VOF) algorithm coupled with a two-way ...

High-Fidelity Simulations of Primary Breakup and Impinging Jet Atomization

Detailed Numerical Simulations of the Primary Atomization of a Turbulent Liquid Jet in Crossflow

This paper presents numerical simulation results of the primary atomization of a turbulent liquid jet injected into a gaseous crossflow. Simulations are performed using the balanced force refined level set grid method. The phase interface during the initial breakup phase is tracked by a level set method on a separate refined grid. A balanced force finite volume algorithm together with an interf...

High Resolution Numerical Simulations of Primary Atomization in Diesel Sprays with Single Component Reference Fuels

A high-resolution numerical simulation of jet breakup and spray formation from a complex diesel fuel injector at diesel engine type conditions has been performed. A full understanding of the primary atomization process in diesel fuel injection has not been achieved for several reasons including the difficulties accessing the optically dense region. Due to the recent advances in numerical method...

Toward reliable numerical simulations of the atomization process

This talk will be very prospective on multiple key aspects and complex features of the numerical simulation of liquid combustion. Even though the concepts and techniques presented here have numerous other domains of application, liquid combustion and more particularly the process of the liquid jet atomization is the one which embraces them all. In the global tendency to reduce fuel consumption ...