Advertisement

Numerical Simulation of a Transonic Gas-Droplet Two-Phase Flow over an Airfoil with a Droplet Breakup Model

  • Geum-Su Yeom
  • Keun-Shik Chang
Conference paper

Introduction

Gas-particle two-phase flows are abundant in the practical engineering problems. A branch of application is involved with the solid particles such as dust cyclone, flight in the hail storm, detonation of the dusty gases in the coal mine and grain storage tank, etc. Another branch of applications happen in the gas-liquid droplet two-phase flows but it is somewhat strange that they have not been much solved in the literature. Examples of this flow are the aviation of a flight vehicle through the cloud, fuel spray combustion and pulse detonation engine. Numerical simulation of the gas flow with the liquid droplets is more difficult than the gas flow with the solid particles. The reason is simple: the liquid droplets are a deformable medium with surface tension, breakup, coalescence, evaporation and condensation. In the present paper, we numerically simulate the transonic flow of air-water droplet mixture over a NACA0012 airfoil: see Fig. 1.

Keywords

Droplet Size Liquid Droplet Droplet Diameter Breakup Time Droplet Breakup 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Yeom, G.S., Chang, K.S.: Shock Wave Diffraction about a Wedge in a Gas-Microdroplet Mixture. Int. J. Heat Mass Transfer 53, 5073–5088 (2010)zbMATHCrossRefGoogle Scholar
  2. 2.
    Ishii, M., Hibiki, T.: Thermo-Fluid Dynamics of Two-Phase Flow. Springer, New York (2006)zbMATHGoogle Scholar
  3. 3.
    Yuen, M.C., Chen, L.W.: Heat transfer measurements of evaporating liquid droplets. Int. J. Heat Mass Transfer 21, 537–542 (1977)CrossRefGoogle Scholar
  4. 4.
    Kolev, N.I.: Fragmentation and Coalescence Dynamics in Multiphase Flows. Exp. Therm. Fluid Sci. 6, 211–251 (1993)CrossRefGoogle Scholar
  5. 5.
    Brodkey, R.S.: The Phenomena of Fluid Motions. Addison-Wesley, Reading, Mass. (1967)Google Scholar
  6. 6.
    Pilch, M., Erdman, C.A.: Use of Breakup Time Data and Velocity History Data to Predict the Maximum Size of Stable Fragments for Acceleration-Induced Breakup of a Liquid Drop. Int. J. Multiphase Flow 13, 741–757 (1987)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Geum-Su Yeom
    • 1
  • Keun-Shik Chang
    • 1
  1. 1.Department of Mechanical, Aerospace and Systems EngineeringKorea Advanced Institute of Science and TechnologyDaejeonSouth Korea

Personalised recommendations