Improved Methods for Mixing-Limited Spray Modeling

The realization that interfacial features play little role in diesel spray vaporization and advection has changed the modus operandi for spray modeling. Lagrangian particle tracking has typically been focused on droplet behavior, with sub-models for breakup, collision, and interfacially limited vapo...

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Published inarXiv.org
Main Authors Haghshenas, Majid, Mitra, Peetak P, Chu, Wang, Tagliante, Fabien, Pickett, Lyle, Schmidt, David P
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 07.07.2021
Subjects
Gas entrainment
Modelling
Particle tracking
Vapor phases
Vaporization
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Abstract The realization that interfacial features play little role in diesel spray vaporization and advection has changed the modus operandi for spray modeling. Lagrangian particle tracking has typically been focused on droplet behavior, with sub-models for breakup, collision, and interfacially limited vaporization. In contrast, the mixing-oriented spray models are constructed so that gas entrainment is the limiting factor in the evolution of momentum and energy. In this work, a new spray model, ELMO (Eulerian-Lagrangian Mixing-Oriented), is implemented in a three-dimensional CFD code with two-way coupling with the gas phase. The model is verified and validated with three canonical sprays including spray A, H, and G from the ECN database.
AbstractList The realization that interfacial features play little role in diesel spray vaporization and advection has changed the modus operandi for spray modeling. Lagrangian particle tracking has typically been focused on droplet behavior, with sub-models for breakup, collision, and interfacially limited vaporization. In contrast, the mixing-oriented spray models are constructed so that gas entrainment is the limiting factor in the evolution of momentum and energy. In this work, a new spray model, ELMO (Eulerian-Lagrangian Mixing-Oriented), is implemented in a three-dimensional CFD code with two-way coupling with the gas phase. The model is verified and validated with three canonical sprays including spray A, H, and G from the ECN database.
Author Tagliante, Fabien
Schmidt, David P
Pickett, Lyle
Haghshenas, Majid
Mitra, Peetak P
Chu, Wang
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SubjectTerms Gas entrainment
Modelling
Particle tracking
Vapor phases
Vaporization
Title Improved Methods for Mixing-Limited Spray Modeling
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