Challenges for turbulent combustion

AR Masri - Proceedings of the Combustion Institute, 2021 - Elsevier
Turbulent combustion will remain central to the next generation of combustion devices that
are likely to employ blends of renewable and fossil fuels, transitioning eventually to …

Direct Numerical Simulation of hydrogen combustion at auto-ignitive conditions: Ignition, stability and turbulent reaction-front velocity

A Gruber, MR Bothien, A Ciani, K Aditya, JH Chen… - Combustion and …, 2021 - Elsevier
Abstract Direct Numerical Simulations (DNS) are performed to investigate the process of
spontaneous ignition of hydrogen flames at laminar, turbulent, adiabatic and non-adiabatic …

[HTML][HTML] Thermoacoustic stabilization of a sequential combustor with ultra-low-power nanosecond repetitively pulsed discharges

B Dharmaputra, S Shcherbanev, B Schuermans… - Combustion and …, 2023 - Elsevier
This study demonstrates the stabilization of a sequential combustor with Nanosecond
Repetitively Pulsed Discharges (NRPD). Sequential combustors offer advantages such as …

Direct numerical simulations and models for hot burnt gases jet ignition

Q Malé, O Vermorel, F Ravet, T Poinsot - Combustion and Flame, 2021 - Elsevier
This work uses multiple three-dimensional Direct Numerical Simulations (DNSs) to i)
investigate the ignition process of a cold lean premixed mixture at atmospheric conditions by …

Mode shape-dependent thermoacoustic interactions between a lean-premixed primary flame and an axially-staged transverse reacting jet

Y Choi, KT Kim - Combustion and Flame, 2023 - Elsevier
Axial fuel staging enables elevation of the turbine inlet temperature in advanced heavy-duty
gas turbine combustors to∼ 2000 K, ultimately to achieve more than 65% combined cycle …

Optimal control of turbulent premixed combustion instability with annular micropore air jets

H Zhou, C Tao, Z Liu, S Meng, K Cen - Aerospace Science and Technology, 2020 - Elsevier
This article experimentally investigates the suppressing of combustion instability in a model
gas turbine combustor with annular air jets. Three parameters were optimized to find the …

Unstretched unburned flame speed and burned gas Markstein length of diluted hydrogen/air mixtures

BC Duva, E Toulson - International Journal of Hydrogen Energy, 2022 - Elsevier
Fundamental combustion characteristics of H 2/air flames with the addition of actual H 2/air
combustion residuals (a mixture of 65% N 2+ 35% H 2 O by mole) are examined …

Regimes of premixed turbulent spontaneous ignition and deflagration under gas-turbine reheat combustion conditions

B Savard, ER Hawkes, K Aditya, H Wang… - Combustion and Flame, 2019 - Elsevier
We address the problem of turbulent spontaneous ignition vs. deflagration propagating
against a mean residence time gradient, particularly relevant to the stabilization of quasi …

[HTML][HTML] Combustion regime transition of H2 flames during steady and transient operation of a sequential combustor

R Solana-Pérez, SA Shcherbanev… - Proceedings of the …, 2023 - Elsevier
The combustion regime transition in a sequential burner (SB) supplied with H 2 (48 kW) is
experimentally studied during steady and transient operation. The test rig is a simplified …

Characteristics of turbulent flames in a confined and pressurised jet-in-hot-coflow combustor

DB Proud, MJ Evans, QN Chan, PR Medwell - Journal of the Energy …, 2022 - Elsevier
Combustion in hot and low oxygen environments—such as those encountered in practical
devices including inter-turbine burners and sequential gas turbines—is not yet fully …