Uploaded November 2017 | Updated September 2026, 1 day ago
Entered into the ZEISS Photography Competition 2017.
This is a video shot at 3000 fps of an experiment in our lab. It is a laminar premixed flame inside a quartz tube. The unsteady heat release from the flame interacts with the acoustic field giving rise to thermoacoustic oscillations, a major concern for rocket engine and gas turbine engine manufacturers. What you can see is a perturbation at the base of the flame, which convects down the flame front, and pinches-off at the flame tip.
In the lab, an audible sound is heard at 300 Hz, the frequency at which the perturbations to the flame front are occurring.
Entered into the ZEISS Photography Competition 2017.
This is a video shot at 3000 fps of an experiment in our lab. It is a laminar premixed flame inside a quartz tube. The unsteady heat release from the flame interacts with the acoustic field giving rise to thermoacoustic oscillations, a major concern for rocket engine and gas turbine engine manufacturers. What you can see is a perturbation at the base of the flame, which convects down the flame front, and pinches-off at the flame tip.
In the lab, an audible sound is heard at 300 Hz, the frequency at which the perturbations to the flame front are occurring.
