Initiation of a validation strategy of reduced-order two-fluid flow models using direct numerical simulations in the context of jet atomization

TL;DR

This paper develops a validation strategy for reduced-order two-fluid flow models in jet atomization by creating a hierarchy of DNS test cases, focusing on cryogenic and air-assisted water atomization.

Contribution

It introduces a validation framework using DNS test cases to evaluate diffuse interface models in cryogenic jet atomization.

Findings

Hierarchy of DNS test cases established

Qualitative and quantitative assessment methods proposed

Initial validation performed on air-assisted water atomization

Abstract

In industrial applications, developing predictive tools relying on numerical simulations using reduced-order models nourish the need of building a validation strategy. In the context of cryogenic atomization, we propose to build a hierarchy of direct numerical simulation test cases to assess qualitatively and quantitatively diffuse interface models. The present work proposes an initiation of the validation strategy with an air-assisted water atomization using a coaxial injector.