Supercritical and transcritical turbulent injection processes: Consistency of numerical modeling

F Ries, A Sadiki - Atomization and Sprays, 2021 - dl.begellhouse.com
The present paper reviews recent achievements in numerical modeling of super-and
transcritical injection processes during the last 20 years. First, it provides an overview of …

Turbulence/chemistry interactions in a ramp-stabilized supersonic hydrogen–air diffusion flame

JA Fulton, JR Edwards, A Cutler, J McDaniel… - Combustion and …, 2016 - Elsevier
Hybrid large-eddy/Reynolds-averaged Navier–Stokes simulations of turbulence/chemistry
interactions occurring within a ramp-injected, hydrogen-fueled scramjet combustor are …

Numerical study of turbulent non-premixed cool flames at high and supercritical pressures: Real gas effects and dual peak structure

S Ramachandran, N Srinivasan, TS Taneja… - Combustion and …, 2023 - Elsevier
To study the formation of cool flames at high/supercritical pressures, adaptive mesh
refinement (AMR)-based simulations of dimethyl ether (DME)-air pesudo-turbulent reacting …

Thermodynamic structure of supercritical LOX–GH2 diffusion flames

DT Banuti, PC Ma, JP Hickey, M Ihme - Combustion and Flame, 2018 - Elsevier
In this study, we evaluate the thermodynamic structure of laminar hydrogen/oxygen flames at
supercritical pressures using 1D flame calculations and large-eddy simulation (LES) results …

Interpretable data-driven methods for subgrid-scale closure in LES for transcritical LOX/GCH4 combustion

WT Chung, AA Mishra, M Ihme - Combustion and Flame, 2022 - Elsevier
Although data-driven methods have shown high accuracy as closure models for simulating
turbulent flames, these models are often criticized for lack of physical interpretability …

Contribution to the physical description of supercritical cold flow injection: The case of nitrogen

LB Magalhaes, ARR Silva, JMM Barata - Acta Astronautica, 2022 - Elsevier
While increased pressure and temperature contribute to an overall efficiency gain in the
mixing of propellants and oxidizers, characteristic of conditions in the combustion chambers …

Modeling the equations of state using a flamelet approach in LRE-like conditions

PE Lapenna, G Indelicato, R Lamioni, F Creta - Acta Astronautica, 2019 - Elsevier
In this study, we investigate the averaging and modeling of real fluid equations of state (EoS)
used in the context of numerical simulations of flows under conditions relevant to liquid …

A systematic approach to high-fidelity modeling and efficient simulation of supercritical fluid mixing and combustion

X Wang, H Huo, U Unnikrishnan, V Yang - Combustion and Flame, 2018 - Elsevier
Advances in fluid-flow modeling and simulation techniques over the past two decades have
improved understanding of the intricate flow physics and combustion dynamics in the …

Subgrid modeling of the filtered equation of state with application to real-fluid turbulent mixing at supercritical pressures

U Unnikrishnan, JC Oefelein, V Yang - Physics of Fluids, 2022 - pubs.aip.org
Simulation of turbulent mixing and combustion at supercritical pressures requires the use of
a real-fluid equation of state (EOS) to represent the nonideal, nonlinear thermodynamic …

A numerical study on jet characteristics under different supercritical conditions for engine applications

J Zhang, X Zhang, T Wang, X Hou - Applied Energy, 2019 - Elsevier
Fuel injection is one of the key factors that influence the energy conversion efficiency and
emission level of engines. In this study, supercritical injection and mixing under different …