Heat and mass transfer in the process of movement of water drops in a high-temperature gas medium

被引：46

作者：

Vysokomornaya O.V. ^{[1
]}

Kuznetsov G.V. ^{[1
]}

Strizhak P.A. ^{[1
]}

机构：

[1] National Research Tomsk Polytechnic University

来源：

Journal of Engineering Physics and Thermophysics | 2013年 / 86卷 / 01期

关键词：

Condensed liquid substance; Drop; Heat and mass transfer; High-temperature gas medium; Temperature and concentration fields of the water vapor;

D O I：

10.1007/s10891-013-0805-3

中图分类号：

学科分类号：

摘要：

The heat and mass transfer in the process of movement of water drops in a high-temperature gas medium was numerically investigated. The regimes and conditions of formation of the zone of mutual influence of two drops were determined on the basis of an analysis of the temperature and concentration fields of the water vapor in the neighborhood of the trajectory of movement of the drops. The times of existence (complete evaporation) of one and two drops as a result of their interaction with the high-temperature products of combustion of a typical condensed liquid substance were compared. It has been established that only in the case where the distance between the two drops is small is the intensity of evaporation of water from them substantially lower than that of a single drop. © 2013 Springer Science+Business Media New York.

引用

页码：62 / 68

页数：6

共 27 条

[1]

Karpyshev A.V., Dushkin A.L., Ryazantsev N.N., Development of a highly efficient universal fire extinguisher based on generation of jets of finely dispersed fire-extinguishing substances, Pozharovzryvobezopasnost, 16, 2, pp. 69-73, (2007)

[2]

Gaev D.V., Ershov A.V., Prokhorov P.V., Et al., System of fire protection for the interior of a subway car on the basis of high technologies, Probl. Bezopasn. Chrezv. Situatsii, 4, 3, pp. 67-72, (2009)

[3]

Dushkin A.L., Lovchinskii S.E., Interaction of the flame of a flammable liquid with a finely dispersed water, Pozharovzryvobezopasnost', 20, 11, pp. 53-55, (2011)

[4]

Dorofeev B.M., Volkova V.I., Dynamics of growth of vapor bubbles in the boiling due to the excessive enthalpy of the surrounding superheated liquid, Teplofiz. Vys. Temp., 46, 6, pp. 931-936, (2008)

[5]

Zeigarnik Yu.A., Platonov D.N., Khodakov K.A., Shekhter Yu.L., Visualization of the boiling of a sub-cooled water, Teplofiz. Vys. Temp., 49, 4, pp. 584-588, (2011)

[6]

Pokusaev B.G., Nekrasov D.A., Tairov E.A., Simulation of the boiling up of subcooled water and ethanol under the conditions of a pulsed heat release in a wall, Teplofiz. Vysok. Temp., 50, 1, pp. 89-95, (2012)

[7]

Sazhin S.S., Abdelghaffar W.A., Sazhina E.M., Heikal M.R., Models for droplet transient heating: Effects on droplet evaporation, ignition, and break-up, Int. J. Thermal Sci., 44, pp. 610-622, (2005)

[8]

Sazhin S.S., Advanced models of fuel droplet heating and evaporation, Proc. Combust. Inst., 32, pp. 162-214, (2006)

[9]

Khabeev N.S., Duhamel integral form for the interface heat flux between bubble and liquid, Int. J. Heat Mass Transfer, 50, pp. 5340-5343, (2007)

[10]

Kuznetsov G.V., Strizhak P.A., Heat and mass transfer at the ignition of liquid fuel droplet spreading on the hot surface, J. Eng. Thermophys., 19, pp. 75-84, (2010)

← 1 2 3 →