Large-eddy simulations of hydrogen and ethylene injections into a supersonic crossflow

Junya Watanabe, Toshinori Kouchi, Kenichi Takita, Goro Masuya

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

4 Citations (Scopus)

Abstract

Turbulent structure and mixing state of hydrogen and ethylene jets transversely injected into Mach 1.9 supersonic crossflow was numerically investigated using large-eddy simulation. The feature of windward large-scale structure was largely different between the hydrogen and ethylene jets. The ethylene jet had a highly intermittent feature with intensive geometric change of jet plume. The hydrogen jet had much larger velocity difference between the jet and the crossflow in the near-field, thus much higher turbulent intensity was obtained than in the ethylene jet. In addition, the scale of energetic eddy of hydrogen jet was larger in the windward mixing layer. These probably result in the better mixing in the hydrogen jet than in the ethylene jet.

Original languageEnglish
Title of host publication47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011
Publication statusPublished - 2011
Externally publishedYes
Event47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011 - San Diego, CA, United States
Duration: Jul 31 2011Aug 3 2011

Other

Other47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011
CountryUnited States
CitySan Diego, CA
Period7/31/118/3/11

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Watanabe, J., Kouchi, T., Takita, K., & Masuya, G. (2011). Large-eddy simulations of hydrogen and ethylene injections into a supersonic crossflow. In 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011