Untitled - Aerobib - Universidad Politécnica de Madrid

13.16. APPENDIX: APPLICATION OF PROBERT’S METHOD 333
Combustion changes the droplet size distribution, preserving, obviously the
maximum diameter. Figure 13.10 shows the distribution functions at the flame corresponding
to the three cases studied. For comparison this figure includes the distributions
corresponding to the spray. Table 13.2 also gives Sauter’s diameters for both the
spray and the flame.
1.0
0.9
0.8
F
0.7
0.6
0.5
0.4
0.3
0.2
0.1
ε = 1.5
ε = 0.5
ε = 1.0
Spray
Combustion
0.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
d / d max
Figure 13.10: Effect of combustion on the droplet size distribution for some values of ε.
References
[1] Khudyakov, G. N.: Combustion of Liquids from Free Surfaces. Isv. Acd. Sci.
USER, Div. Chem. Sci., Nos. 10-11, 1945.
[2] Khudyakov, G. N.: Distribution of Temperature within a Liquid Burning from
a Free Surface, and Description of the Flame Formed. R.A.E. Translation no.
422, 1953.
[3] Spalding, B. D.: The Combustion of Liquid Fuels. Fourth Symposium (International)
on Combustion, Williams and Wilkins Co., Baltimore, 1953, pp. 847-
864.
[4] Spalding B. D.: The Calculation of Mass Transfer Rates in Absorption, Vaporization,
Condensation and Combustion Processes. Proceedings of the Institution
of Mechanical Engineers, Vol. 168, No. 19, 1954.