Structure and dynamics of highly turbulent premixed combustion

AM Steinberg, PE Hamlington, X Zhao - Progress in Energy and …, 2021 - Elsevier
Turbulent premixed combustion involves simultaneous and mutually interacting fluid,
chemical, and transport phenomena spanning a wide range of spatial and temporal scales …

Recent developments in DNS of turbulent combustion

P Domingo, L Vervisch - Proceedings of the Combustion Institute, 2023 - Elsevier
The simulation of turbulent flames fully resolving the smallest flow scales and the thinnest
reaction zones goes along with specific requirements, which are discussed from …

Suppression of the turbulent kinetic energy and enhancement of the flame-normal Reynolds stress in premixed jet flames at small Lewis numbers

Y Su, Z Lu, Y Yang - Combustion and Flame, 2022 - Elsevier
We report the effects of the Lewis number on the turbulent kinetic energy, Reynolds stresses,
and scalar fluxes in premixed jet flames with strong mean shear. The direct numerical …

Effects of thermal expansion on moderately intense turbulence in premixed flames

VA Sabelnikov, AN Lipatnikov, NV Nikitin… - Physics of …, 2022 - pubs.aip.org
This study aims at analytically and numerically exploring the influence of combustion-
induced thermal expansion on turbulence in premixed flames. In the theoretical part …

Conditioned structure functions in turbulent hydrogen/air flames

VA Sabelnikov, AN Lipatnikov, NV Nikitin… - Physics of …, 2022 - pubs.aip.org
Direct numerical simulation data obtained from two turbulent, lean hydrogen–air flames
propagating in a box are analyzed to explore the influence of combustion-induced thermal …

Closure modeling for the conditional Reynolds stresses in turbulent premixed combustion

J Lee, ME Mueller - Proceedings of the Combustion Institute, 2021 - Elsevier
Turbulence is significantly affected by combustion-induced dilatation in low Karlovitz number
premixed flames. Conventional turbulence modeling approaches based on traditional …

Experimental assessment of kinetic energy backscatter in turbulent premixed swirl flames across swirl, scale, and conditions

A Kazbekov, A Bhagat, AM Steinberg - Combustion and Flame, 2024 - Elsevier
The inter-scale transfer of kinetic energy is analyzed in fuel-lean turbulent premixed swirl
flames with varying equivalence ratio, velocity, and swirl number. Measurements are made …

Damköhler number scaling of active cascade effects in turbulent premixed combustion

JF MacArt, ME Mueller - Physics of Fluids, 2021 - pubs.aip.org
Effects of combustion heat release on turbulent velocity and scalar statistics are investigated
as a function of the Damköhler number using three direct numerical simulation databases of …

The role of flow confinement on turbulent kinetic energy transfer across premixed flames

AJ Morales, M Thornton, TGM Tonarely Jr… - Combustion and …, 2022 - Elsevier
The interaction between turbulent flows and premixed flames remains a significant topic of
interest for improved modeling efforts and the advancement of clean and efficient …

Production and transport of turbulent kinetic energy from premixed flames subjected to mean pressure gradients

AJ Morales, MK Geikie, KA Ahmed - Experimental Thermal and Fluid …, 2023 - Elsevier
The influence of mean favorable pressure gradients on the production and transport of
turbulent kinetic energy is experimentally investigated in a premixed bluff-body combustor …