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http://dx.doi.org/10.5139/JKSAS.2005.33.4.071

Effects of Convective Velocity and Ambient Pressure on the Characteristics of Heptane Droplet Vaporization in Supercritical Environments  

Lim, Jong-Hyuk (한국항공대학교 항공우주 및 기계공학과)
Lee, Bong-Su (한국항공대학교 항공우주 및 기계공학과)
Koo, Ja-Ye (한국항공대학교 항공우주 및 기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.4, 2005 , pp. 71-78 More about this Journal
Abstract
The vaporization characteristics of a liquid heptane droplet in a supercritical nitrogen flow is numerically analyzed. The present model can account for real gas effects, liquid-phase internal circulation, variable thermodynamic properties and high-pressure effects. Time marching method with preconditioning scheme is employed to handle the low Mach number flows in dense heptane droplet region. Computations are made for the wide range of convective velocity and ambient pressure. Numerical results indicate that the droplet deformation becomes stronger by increasing the Reynolds number and it becomes relatively weak by increasing the pressure.
Keywords
Vaporization; Internal circulation; High-pressure effects; Droplet behavior; Droplet deformation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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