Mixing and phase separation at supercritical and transcritical pressures

Conference paper (2017)

Authors

S. Hickel Aerodynamics - Aerospace Engineering
Jan Matheis Technische Universität München
Research Group
Aerodynamics (Aerospace Engineering) (TU Delft)
Copyright: © 2017 S. Hickel, Jan Matheis
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Published Date

2017

Language

English

Reuse Rights

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Faculty

Aerospace Engineering

Department

Flow Physics and Technology

Research Group

Aerodynamics

Abstract

We have developed a thermodynamically consistent and tuning-parameter-free two-phase model for Eulerian large-eddy simulations (LES) of liquid-fuel injection and mixing at high pressure. The model is based on cubic equations of state and vaporliquid equilibrium calculations. It can represent the coexistence of supercritical states and multi-component subcritical two-phase states via a homogeneous mixture approach without any semiempirical break-up and evaporation models. Computational results for liquid-fuel injection at transcritical operating conditions are found to agree very well with available experimental data for the ECN Spray A.

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