The results are represented in two archives which create after uncompressing two directories ./DLR_H2N2/average and ./DLR_H2N2/single. The averaged data are represented in files with extensions *.ave (ensemble averages) and *.fav (Favre averages). The single shot data are listed in files of type *.sma.Raman/Rayleigh Scattering: For the investigations of methane and methane/hydrogen flames, the temperature was deduced from the Rayleigh scattered signal.
FBLGR is the Bilger mixture fraction defined from hydrogen, carbon, and oxygen elemental mass fractions as:
YH
T is the temperature given in Kelvin, which was determined from the density and the ideal gas law for all flames and additionaly from Rayleigh scattering for flame V1. The Rayleigh cross section was determined according to the actual gas composition for each sample which was derived from the Raman measurements, even though it varies only by +-5% across the whole V1-flame. Temperatures determined from Rayleigh measurements are considered to be more accurate than the temperatures determined from Raman scattering using the ideal gas law. Raman temperatures can easily be calculated using the RND factor (see below).
O2, N2, H2, H2O, CO, CO2, CH4: Mass fractions of the species oxygen, nitrogen, hydrogen, water, carbonmonoxide, carbondioxide, and methane, respectively. The mass fractions are normalized to unity.
RND is the ratio of total number densities from Raman scattering and Rayleigh measurements. Equivalently, RND is equal to the ratio of temperatures determined from Rayleigh and Raman measurements. RND is equal to 1, if T is determined from density.
Prefices m and s refer to mean values and their standard deviations.