Premixed flames subjected to extreme turbulence: Some questions and recent answers

JF Driscoll, JH Chen, AW Skiba, CD Carter… - Progress in Energy and …, 2020 - Elsevier
It has been predicted that several changes will occur when premixed flames are subjected to
the extreme levels of turbulence that can be found in practical combustors. This paper is a …

Time-resolved particle image velocimetry

SJ Beresh - Measurement Science and Technology, 2021 - iopscience.iop.org
Time-resolved particle image velocimetry (TR-PIV) has become widespread in fluid
dynamics. Essentially a velocity field movie, the dynamic content provides temporal as well …

High-speed formaldehyde planar laser-induced fluorescence and schlieren to assess influences of injection pressure and oxygen concentration on Spray A flames

HS Sim, N Maes, LM Pickett, SA Skeen, J Manin - Combustion and Flame, 2023 - Elsevier
The present study investigates the effect of injection pressure and ambient oxygen
concentration variations on the Engine Combustion Network Spray A flame. The two-stage …

[PDF][PDF] Structure and dynamics of CH2O, OH, and the velocity field of a confined bluff-body premixed flame, using simultaneous PLIF and PIV at 10 kHz.

CA Fugger, S Roy, AW Caswell… - Proceedings of the …, 2019 - drive.google.com
This study characterizes the structure and dynamics of a confined, bluff-body-stabilized
turbulent premixed flame by simultaneously employing formaldehyde (CH2O) and hydroxyl …

The influence of large eddies on the structure of turbulent premixed flames characterized with stereo-PIV and multi-species PLIF at 20 kHz

AW Skiba, CD Carter, SD Hammack, JD Miller… - Proceedings of the …, 2019 - Elsevier
Interactions between turbulent structures (eddies) and premixed flame fronts were
characterized with simultaneous CH 2 O-/OH-PLIF and stereo-PIV at high framing rate (20 …

Strategy for instantaneous formaldehyde (CH2O) imaging by planar laser-induced fluorescence (PLIF) in a scramjet with intense flame emissions

M Wan, J Zhu, M Sun, S Zheng, B Zhou, Y Huang… - Combustion and …, 2023 - Elsevier
Abstract Conducting CH 2 O PLIF imaging in scramjets is challenging due to strong flame
emissions (FEs). The FE interference is comparable to the CH 2 O fluorescence in the …

Assessment of the stabilization mechanisms of turbulent lifted jet flames at elevated pressure using combined 2-D diagnostics

TF Guiberti, WR Boyette, Y Krishna, WL Roberts… - Combustion and …, 2020 - Elsevier
The stabilization mechanisms of turbulent lifted jet flames in a co-flow have been
investigated at a pressure of 7 bar. The structure of the flame base was measured with …

High repetition-Rate laser diode side-Pumped burst-mode Nd: YAG laser with enhanced output pulse uniformity

R Yan, H Xu, Y Jiang, W Wang, R Fan, D Chen… - Infrared Physics & …, 2024 - Elsevier
A theoretical and experimental investigation is conducted on a high repetition-rate side-
pumped burst-mode Nd: YAG laser. The absorbed pumping power distribution and laser …

Rayleigh-scattering-based two-dimensional temperature measurement at 100-kHz frequency in a reacting flow

SW Grib, N Jiang, PS Hsu, PM Danehy, S Roy - Optics express, 2019 - opg.optica.org
Two-dimensional, Rayleigh-scattering-based temperature measurements utilizing a
turbulent jet flame were performed in this study at 100-kHz frequency. This tenfold increase …

Development of a three-legged, high-speed, burst-mode laser system for simultaneous measurements of velocity and scalars in reacting flows

S Roy, N Jiang, PS Hsu, T Yi, MN Slipchenko… - Optics Letters, 2018 - opg.optica.org
We report the development of a three-legged, high-speed, high-energy, burst-mode laser
system for the simultaneous measurement of velocity and key combustion species in …