INTERACTING, CONVECTING, VAPORIZING FUEL DROPLETS WITH VARIABLE PROPERTIES

被引：73

作者：

CHIANG, CH

SIRIGNANO, WA

机构：

[1] Department of Mechanical and Aerospace Engineering, University of California, Irvine

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1993年 / 36卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0017-9310(05)80271-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Two vaporizing droplets moving in tandem are numerically investigated. The forced convection of the gas phase, the transient deceleration due to the drag force, the surface regression, the relative motion between the two droplets, the internal circulation, transient heating of the liquid phase, and variable properties are considered. The unsteady, axisymmetric description of the global flowfield, the behavior of the interacting droplets, and the transient variation of the droplet spacing are presented. The dependencies on initial droplet Reynolds number, initial droplet spacing, initial droplet size ratio, variable properties, transfer number are determined. The critical droplet size ratio dividing the region where droplets collide from the region where they separate is determined. Correlations for the drag coefficients, Nusselt and Sherwood numbers of the lead droplet and the downstream droplet are obtained.

引用

页码：875 / 886

页数：12