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)

Turbulent Premixed Flames

Many technical devices, ranging from gas-turbines for electricity production to internal combustion engines for automotive applications, rely on turbulent premixed combustion. At the ITV, we perform large scale numerical simulations on the fastest supercomputers in the world to analyze the intricate synergies between turbulence and combustion.The simulations are performed on massively parallel computers with more that 100.000 processors, employing hundreds of billions numerical degrees of freedom, and generating hundreds of terabytes of data. We focus on the scaling of fundamental quantities such as the flame burning rate with respect to basic fluid dynamics parameters such as the Reynolds number. We also investigate the pollutant formation in these system in order to develop strategies for a significant reduction and the development of green device for energy production.

 Visualization of the vorticity fields (grey-scale) and flame surface (red) in a turbulent premixed flame


Antonio Attili