Gas turbine engine including fluid diodes

A gas turbine engine comprising:

• a compressor section, a combustion section, and a turbine section in serial flow arrangement, with the combustion section having a fuel nozzle comprising:
• a fuel nozzle body including an inner fuel nozzle body surface and defining a channel, the channel comprising a compressed air passage and a mixing tube, the fuel nozzle body defining a fuel nozzle centerline, and the mixing tube being located downstream of the compressed air passage;
• an inner air flow path supplying a first air flow to the mixing tube;
• an outer air flow path, circumscribing the inner air flow path, and supplying a second air flow to the mixing tube, wherein the outer air flow path is at least partially defined by the inner fuel nozzle body surface, and wherein the outer air flow path is at least partially defined by a flange extending from the inner fuel nozzle body surface toward the fuel nozzle centerline and into the compressed air passage;
• a set of fluid diodes including a subset of the set of fluid diodes located within the outer air flow path and generating a set of vortices within the outer air flow path;
• and
• a fuel supply including a set of fuel orifices through which a fuel flow is supplied to the mixing tube, wherein the set of fuel orifices is located downstream of the outer air flow path and downstream of the subset of the set of fluid diodes located within the outer air flow path.