JOURNAL: Multiscale analysis of turbulence-flame interaction based on measurements in premixed flames.

Summary

Authors:

François Chantriaux
Théo Quenouille
Nguyen Anh Khoa Doan
Nedunchezhian Swaminathan
Yannis Hardalupas
AMKP Taylor

Ecole Polytechnique, Palaiseau, France
ENSTA Paris, Institut Polytechnique de Paris,
Technical University of Delft
University of Cambridge
Imperial College London

Multiscale analysis of turbulence-flame interaction based on measurements in premixed flames.

Combustion and Flame

May 2022

Multi-scale analysis of turbulence-flame interaction is performed using experimental data sets from three methane- and propane-fired premixed, turbulent V-flames, at an approach flow turbulent Reynolds number of 450 and a ratio of r.m.s. fluctuating velocity from the mean to laminar flame speed of between 2.1 and 3.0, straddling the border between corrugated flamelets and thin reaction zone in the Borghi-Peters diagram. The measurements were made in the plane of a single laser sheet using stereo particle image velocimetry SPIV and planar laser-induced fluorescence to measure three orthogonal components of velocity and flame OH. Methods to approximate the remaining, unmeasured, out of plane derivatives are described.