Passive scalar interface in a spatially evolving mixing layer (A. Attili and D. Denker)

Quartz nozzle sampling (D. Felsmann)

Dissipation element analysis of a planar diffusion flame (D. Denker)

Turbulent/non-turbulent interface in a temporally evolving jet (D. Denker)

Dissipation elements crossing a flame front (D. Denker and B. Hentschel)

Particle laden flow (E. Varea)

Turbulent flame surface in non-premixed methane jet flame (D. Denker)

DNS of primary break up (M. Bode)

Diffusion flame in a slot Bunsen burner (S. Kruse)

Various quantities in spatially evolving jet diffusion flame (D. Denker)

Auto Ignition


Basics

Auto ignition in turbulent flows plays an important role in the field of Diesel engine combustion. Experimental investigations on a counterflow burner allow to better understand the interaction of chemical reaction and turbulence. In this particular flow geometry two turbulent jets, one of a fuel-nitrogen mixture and one of hot air, are arranged to directly oppose each other to form a free stagnation plane. The burner is equipped with a heating device which allows to increase the air temperature up to 1100°C until auto ignition occurs.

 

Applied measurement techniques:

  • PIV (Particle Image Velocimetry)
  • LIF (Laser Induced Fluorescence)
  • Rayleigh scattering

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