Fuel nozzle and gas turbine engine

A fuel nozzle comprising:

• a nozzle part that is disposed along an axis and injects liquid fuel from an injection hole toward a combustion chamber;
• a first tubular portion that is formed in a tubular shape along the axis, is disposed on an outer peripheral side of the nozzle part, and forms a first flow channel, which allows combustion air to flow, between the first tubular portion and the nozzle part;
• and
• a first swirler that is disposed in the first flow channel and applies a swirling force allowing the combustion air, which flows through the first flow channel, to swirl around the axis,
• wherein an inner peripheral surface of the first tubular portion causes the liquid fuel, which is injected from the nozzle part, to adhere to the inner peripheral surface to form a liquid film, and
• the first tubular portion is formed such that a flow channel cross-sectional area is not increased and a wetted perimeter of the inner peripheral surface of the first tubular portion in a cross section orthogonal to the axis is increased as approaching the combustion chamber along the axis.