[HTML][HTML] Analysis of turbulent mixing in a methane–oxygen recessed injector for space propulsion

D Martinez-Sanchis, A Sternin, A Jocher, O Haidn - Physics of Fluids, 2023 - pubs.aip.org
Turbulent mixing in a methane–oxygen recessed injector is studied using direct numerical
simulations. The operating point is chosen to be fuel-rich and at high pressure to recreate a …

The role of turbulence in the characteristic velocity and length of rocket combustors

D Martinez-Sanchis, A Sternin, T Santese… - Aerospace Science and …, 2023 - Elsevier
High-fidelity direct numerical simulations are conducted to investigate combustion
performance in high-pressure methane-oxygen diffusion flames with different inlet …

Interactions between flame topology and turbulent transport in high-pressure premixed combustion

D Martínez-Sanchis, A Sternin, K Tagscherer… - Flow, Turbulence and …, 2022 - Springer
Direct numerical simulations of a turbulent premixed stoichiometric methane-oxygen flame
were conducted. The chosen combustion pressure was 20 bar, to resemble conditions …

[HTML][HTML] Analysis of periodic synthetic turbulence generation and development for direct numerical simulations applications

D Martinez-Sanchis, A Sternin, D Sternin, O Haidn… - Physics of …, 2021 - pubs.aip.org
The generation of periodic synthetic turbulence through superposition of Fourier modes is
investigated. The introduction of directional biases and mismatches in the second-order …

Turbulent combustion statistics in a diffusion flame for space propulsion applications

D Martinez-Sanchis, A Sternin, O Haidn, M Tajmar - Physics of Fluids, 2022 - pubs.aip.org
The usage of direct numerical simulations for research of turbulent combustion for space
propulsion applications is explored. With this goal in mind, the combustion near the injection …

Supervised learning mixing characteristics of film cooling in a rocket combustor using convolutional neural networks

H Ma, Y Zhang, OJ Haidn, N Thuerey, X Hu - Acta Astronautica, 2020 - Elsevier
Abstract Machine learning approach has been applied previously to physical problem such
as complex fluid flows. This paper presents a method of using convolutional neural networks …

[HTML][HTML] Analysis of turbulence generation and dissipation in shear layers of methane–oxygen diffusion flames using direct numerical simulations

D Martinez-Sanchis, S Banik, A Sternin, D Sternin… - Physics of …, 2022 - pubs.aip.org
A turbulent methane–oxygen diffusion flame is studied using a direct numerical simulation
setup. The operating regime and turbulence characteristics are chosen to resemble those of …

Mixture fraction statistics in methane-oxygen turbulent combustion for space propulsion

D Martinez-Sanchis, A Sternin… - Aerospace Science and …, 2023 - Elsevier
Two high-pressure turbulent non-premixed methane-oxygen flames are simulated using the
unsteady reactive solver EBI-DNS. The results are used to investigate the statistics of the …

RANS based numerical simulation of a GCH4/GO2 rocket engine combustion chamber with film cooling and improvement of wall heat flux prediction

J Liu, S Zhang, J Wei, OJ Haidn - Applied Thermal Engineering, 2023 - Elsevier
Methane/Oxygen rocket engine is becoming one of the most promising rocket engines today
due to its cost-effectiveness and reusability. In the design process of rocket engines, cooling …

[HTML][HTML] Effects of injection recess in methane turbulent combustion for space propulsion

D Martinez-Sanchis, A Sternin, O Haidn, A Jocher - Physics of Fluids, 2024 - pubs.aip.org
Direct numerical simulations (DNS) are conducted to analyze the effect of recess in the
mixing and combustion performance of gaseous methane—oxygen injection systems. The …