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RESEARCH PAPERS

Axisymmetric Unsteady Droplet Vaporization and Gas Temperature Distribution

[+] Author and Article Information
S. K. Lee, T. J. Chung

Department of Mechanical Engineering, The University of Alabama in Huntsville, Huntsville, AL 35899

J. Heat Transfer 111(2), 487-494 (May 01, 1989) (8 pages) doi:10.1115/1.3250703 History: Received November 12, 1987; Online October 20, 2009

Abstract

Droplet vaporization and temperature distributions of axisymmetric unsteady sprays are investigated. The so-called discrete droplet model of two-phase flows, often known as the Eulerian–Lagrangian method, is used. Calculations are carried out with Eulerian coordinates using finite elements for the gas phase and the method of characteristics using the second-order Runge–Kutta scheme for the droplet liquid phase. The sensitivity of the numerical results to changes in time step, injection pulse time, grid spacing, and number of droplet characteristics is examined. Through a simple example, it is shown that applications of the finite element method to more complicated problems appear to be promising.

Copyright © 1989 by ASME
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