Comparison of Experimental and Computed Species Concentration and Temperature Profiles in Laminar, Two-Dimensional Methane/Air Diffusion Flames

Development of rotational CARS for combustion diagnostics using a polarization approach

“…It should however be noticed that this approximation increases uncertainty in the temperature evaluation [3,11,14]. The uncertainty of the thermocouple measurements was stated to be ±5% [31] and corresponding uncertainty can be anticipated for the CARS measurements in this case. More details about the theoretical model and the temperature evaluation can be found elsewhere [34].…”

“…The Wolfhard-Parker burner is an exact copy of that used by Smyth and co-workers at NIST in a series of excellent experiments [30]. In our present experiments we used the conditions for a methane/air flame with a methane velocity at the centre slot of 11.0 cm/s and an air velocity of 21.7 cm/s [31]. This flame has been characterised in detail regarding for example species concentrations, temperatures, and velocities [32].…”

An investigation of methane and propane vertical flares

“…The presence of turbulence in a flow field introduces fluctuations in the mixture fraction and in the scalar variables, therefore, the relation between the mixture fraction with the reacting species composition and temperature become nonlinear and can no longer be obtained using Equation (6). A PDF approach is therefore used to obtain the mean values of the species composition and temperature by weighing their instantaneous relationship with the mixture fraction.…”

Detailed measurement and assessment of laminar hydrogen jet diffusion flames

“…The studies have contributed to myriad advances in combustion science, including the development of theoretical, computational, and diagnostic combustion tools. In the past, much research has been devoted to the detailed measurements of thermophysical properties and structures of laminar methane flames along with computational efforts [1][2][3][4][5][6][7][8][9][10][11]. However, less attention has been paid to the similar study of laminar hydrogen flames.…”