Sentence examples for present flames from inspiring English sources
The latter are not accounted for in the present work due to current uncertainties surrounding the accuracy of radiation submodels in the present flames.
Triple flame structure has been detected in the present flames, which is likely to be the appropriate model at the stabilization point.
The present flames were very sensitive to flame stretch, exhibiting ratios of unstretched-to-stretched laminar burning velocities in the range 0.6 to 3.0 for levels of flame stretch well below quenching conditions.
The similar EINOx trends with geometrical or fluid mechanical parameters obtained without taking flame radiation or flame extinction into account reveals that the residence time is the dominant physical parameter associated with NOx scaling for the present flames.
Finally, predictions of yields of major gas species based on mechanisms from both Frenklach and co-workers and Leung and Lindstedt were in good agreement with present measurements and suggest that H atom concentrations (relevant to HACA mechanisms) approximate estimates based on local thermodynamic equilibrium in the present flames.
This indicates that the smallest turbulent eddies can only be able to enter the flame front rather than the HRZ in the present flame conditions.
Kalghatgi's classic phenomenological theory, which is based on scaling arguments, yields a reasonbly accurate prediction (HK/d=11.4) of the liftoff height for the present flame.
When the fuel-side equivalence ratio (ΦB) is above 2.5, the present flame structure can be described as a CH4/air premixed flame merged with a CO/H2/air nonpremixed flame.
The present flame conditions are significantly different from previous work, yet the general structure, statistical trends, and general effects of increasing levels of local extinction agree favorably with the previous experimental data.
Based on the distribution of the temperature, a fully burning probability index able to quantify the degree of extinction along the streamwise coordinate was defined and applied to the present flame measurements.
It is shown that the discrete ordinates method and the optically thin approximation yield relatively close results for the present flame if the medium is modelled as gray using the Planck mean absorption coefficient.
