Changing the mixture fraction variance lower and upper limits in prepdf
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When using prepdf, the intervals of mixture fraction variance is always fixed from 0 to 2.5E-1. Is it possible to change it ? Prepdf displays the SCALED mixture fraction variance defined as : gs = 0.25 * g/(f*(1-f)) where g is the variance. It can be demonstrated that gmax = f*(1-f), which means that : gs = 0.25 *g/gmax and that's the reason behind the 0.25 that you see in the panel. Of course, g < gmax and hence gs < 0.25. Prepdf displays the SCALED mixture fraction variance defined as : gs = 0.25 * g/(f*(1-f)) where g is the variance. It can be demonstrated that gmax = f*(1-f), which means that : gs = 0.25 *g/gmax and that's the reason behind the 0.25 that you see in the panel. Of course, g < gmax and hence gs < 0.25. |
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