Effect of a Pylon Mounted Cavity-Based Flameholder on ‎the Combustor Flow Characteristics

This paper aims to study the effect of a pylon mounted cavity-based flameholder on the combustor flow ‎characteristics. Computational analysis of two different models of flameholder configurations is ‎performed. The novel cavity design ۱۱۰_۹۰ has a fore-wall ramp angle of ۱۱۰ degrees and an aft-wall ‎ramp angle of ۹۰ degrees and this design which shows a comparatively better combustor performance is ‎adopted and mounted with a pylon. The flow features over the high performance base cavity ۱۱۰_۹۰ is ‎compared with the flow features obtained by adding a pylon on the upstream of the base cavity. The two ‎cases are compared qualitatively as well as quantitatively based on the temperature distribution, pressure ‎distribution, recirculation zones and drag experienced by the model. These compared parameters helped ‎us to identify whether the mentioned combination is favorable and augments the flameholder ‎performance‎‎.

کلیدواژه ها:

Combustor performance ، Supersonic flow ، Flameholder ، Cavity flow