Simulation of primary breakup for diesel spray with phase transition

P. Zeng, B. Binninger, P. Peters, Marcus Herrmann

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Diesel spray breakup and evaporation determine the characteristics of the fuel-air mixing for mixture-fraction based combustion models. An accurate spray breakup model is a key point for their predictability, especially primary breakup. Different from the popular droplet-particle based Langragian models, we resolve the liquid phase in Eulerian frame. In addition, a level-set method is employed to capture the two-phase flow interface, including surface tension force. The phase transition is taken into account by introducing surface regression velocity into the level-set transport equation. Through 3D direct numerical simulation (DNS), we can have insight in the formation of ligaments and droplets for diesel direct injection. As experimental results are still difficult to obtain for dense spray, the simulation result reveals the spray primary breakup with the help of modern supercomputers in first principle.

Original languageEnglish (US)
Title of host publicationCEUR Workshop Proceedings
Volume452
StatePublished - 2009
Event7th International Symposium Towards Clean Diesel Engines, TCDE 2009 - Aachen, Germany
Duration: Jun 4 2009Jun 5 2009

Other

Other7th International Symposium Towards Clean Diesel Engines, TCDE 2009
CountryGermany
CityAachen
Period6/4/096/5/09

ASJC Scopus subject areas

  • Computer Science(all)

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  • Cite this

    Zeng, P., Binninger, B., Peters, P., & Herrmann, M. (2009). Simulation of primary breakup for diesel spray with phase transition. In CEUR Workshop Proceedings (Vol. 452)