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Self-similarly developing, premixed, turbulent flames: A theoretical study
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10.1063/1.1921250
/content/aip/journal/pof2/17/6/10.1063/1.1921250
http://aip.metastore.ingenta.com/content/aip/journal/pof2/17/6/10.1063/1.1921250

Figures

Image of FIG. 1.
FIG. 1.

Reynolds-averaged progress variable profiles normalized with flame thickness using Eq. (14). Solid curve has been calculated using Eq. (33). Symbols show experimental data characterized in Table I.

Image of FIG. 2.
FIG. 2.

Reynolds-averaged progress variable profiles normalized with flame thickness using Eq. (14). Solid curve has been calculated using Eq. (33). Symbols show experimental data characterized in Table I.

Image of FIG. 3.
FIG. 3.

Normalized countergradient transport term vs the Favre-averaged progress variable. Bold and fine curves have been calculated using and Eq. (35), respectively, followed by the renormalization of results in order for the maximum value of each term to be equal to unity. The density ratio is specified in legends.

Image of FIG. 4.
FIG. 4.

Various terms in Eq. (38), calculated using Eqs. (9) and (33), vs the Favre-averaged progress variable. Bold lines, symbols, and fine lines show , , and the difference between them, respectively. The minimum values of [see Eq. (47)] have been used in the calculations.

Image of FIG. 5.
FIG. 5.

Fully developed mean flame brush thickness calculated using Eq. (44) for different values of constant . Circles show the maximum values of evaluated using Eq. (46).

Image of FIG. 6.
FIG. 6.

Flame thickness development. Bold and fine curves have been computed using Eqs. (54) and (57), respectively. Open symbols have been calculated using Eq. (55) and . Filled symbols and crosses are associated with the transition from gradient to countergradient turbulent scalar flux for and , respectively. The density ratio is specified in legends.

Image of FIG. 7.
FIG. 7.

Normalized time-dependent diffusivity vs normalized flame development time . Bold and fine curves have been computed substituting either Eq. (54) or Eq. (57), respectively, into Eq. (41).

Image of FIG. 8.
FIG. 8.

Flame development time associated with the transition from gradient to countergradient turbulent scalar flux.

Tables

Generic image for table
Table I.

Experimental conditions.

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/content/aip/journal/pof2/17/6/10.1063/1.1921250
2005-05-27
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self-similarly developing, premixed, turbulent flames: A theoretical study
http://aip.metastore.ingenta.com/content/aip/journal/pof2/17/6/10.1063/1.1921250
10.1063/1.1921250
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