Primary Atomization of a Liquid Jet in Crossflow
Sandeep Rana, Marcus Herrmann
TL;DR
This paper presents a detailed numerical simulation and visualization of the primary atomization process of a turbulent liquid jet in a turbulent crossflow, revealing two distinct breakup modes and complex interface evolution.
Contribution
It introduces a coupled LES/DNS and RLSG simulation approach to visualize and analyze the primary atomization of a liquid jet in crossflow, highlighting breakup modes.
Findings
Identification of column and ligament breakup modes
Visualization of complex phase interface evolution
Insights into atomization mechanisms in turbulent flows
Abstract
In this fluid dynamics video, we present a visualization of the primary atomization of a turbulent liquid jet injected into a turbulent gaseous crossflow. It is based on a detailed numerical simulation of the primary atomization region of the jet using a finite volume, balanced force, incompressible LES/DNS flow solver coupled to a Refined Level Set Grid (RLSG) solver to track the phase interface position. The visualization highlights the two distinct breakup modes of the jet: the column breakup mode of the main liquid column and the ligament breakup mode on the sides of the jet and highlights the complex evolution of the phase interface geometry.
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