Supercritical vaporization of two droplets in tandem in convective environments

Hua Meng, Vigor Yang

Research output: Contribution to conferencePaperpeer-review

Abstract

The interactions with two droplets moving in tandem in supercritical convective environments have been investigated. The numerical solution is based on a unified treatment of real fluid thermodynamics. A preconditioning scheme with the dual time-stepping integration technique is implemented to render the numerical algorithm capable of treating fluid flows at low Mach numbers with strong numerical stiffness. Results indicate that the droplet dynamics exhibits characteristics distinct from that of an isolated droplet. No droplet collision was observed for all the cases studied herein. A forward bag breakup of the leading droplet, however, was found when the two droplets were initially positioned closely with a small H/R ratio (the ratio of the initial droplet spacing to droplet radius). The presence of the trailing droplet slightly affects the lifetime and trajectory of the leading droplet. The lifetime of the trailing droplet is, however, substantially increased. Forward movement was observed for the trailing droplet at a small H/R ratio. Increase in pressure weakens droplet interactions.

Original languageEnglish
DOIs
Publication statusPublished - 2001
Event39th Aerospace Sciences Meeting and Exhibit 2001 - Reno, NV, United States
Duration: 2001 Jan 82001 Jan 11

Other

Other39th Aerospace Sciences Meeting and Exhibit 2001
Country/TerritoryUnited States
CityReno, NV
Period01-01-0801-01-11

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

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