Preliminary Results from a High Pressure Optical gas Turbine Combustor Model with 3D Viewing Capability

This paper will describe the evolution of a high pressure optical gas turbine rig with viewing capability from 3 dimensions. Commisioning work is described followed by an introduction to a generic swirl burner, scaled up by 40 % from a well characterised atmospheric pressure unit. One of the major features of the system is the ability to carry out full 3D studies via the use of an extra optical window which allows flow and other parameter characterization in the rθ direction. Non intrusive laser diagnostics have been installed to use this, with the analysis shown with dynamic pressure transducers to give thermoacoustic relevance to the heat release detection capability.