Presentation Information
[250101-01-01]Combustion Simulations Beyond the Hazard of Explosion and Detonation
Prof. Akiko Matsuo (Keio University)
The words “Explosion" and “Detonation” are negative in terms of safety. They destroy our property and are so-called "physical hazards”. In particular, “detonation" is a dangerous and unpleasant event, and nobody wants to see the results. Scientifically, detonation is one of the premixed combustion phenomena that propagate at hypersonic speed such as Mach number 5. For several decade, detonation has been attractive to the space propulsion research community as a “detonation engine”. Research began with the “pulsed detonation engine (PDE)”, in which detonations occur intermittently to produce thrust for space propulsion. Following the trend for PDE, a new type of detonation engine appeared: the “rotating detonation engine”. Many research institutions succeeded in developing it, and it was eventually launched on a rocket and tested in space. While detonation engines were being developed in many places, CFD with combustion was a powerful tool for elucidating the physics of the newly developed engines. Today, detonation is also an attractive term from an industrial perspective. In the presentation, I would like to introduce the results of a series of simulations of the fundamentals and development research of detonation engines.