Conception of the injection systems and the high-pressure burner

An adaptation of an available high-pressure burner will be performed for implementing the new injection systems. The injection systems will be assimilated to alternative-wedge struts which can generate streamwise vortices for fuel/air mixing enhancement. Several kinds of architectures will be examined to study the effects of the streamwise vortex arrangements such as vortex strength, counter or co-rotating vortex arrangement on the mixing characteristics as well as the combustion efficiency. For the experiments, each strut could generate several vortices (up to 8) in a spanwise row configuration. Gaseous Hydrogen will be injected parallel to the mainstream direction directly in the core region of each streamwise vortex through a series of small orifices. The injection system will be mounted in a water-steel pressure housing with four optical accesses. Pressure will be adjusted between 0.1 to 0.4 MPa.