CIRCUMFERENTIALLY VARYING FAN CASING TREATMENTS FOR REDUCING FAN NOISE EFFECTS
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United States of America
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Issued Date -
Dec 26, 2024
app pub date -
Sep 5, 2024
filing date -
Sep 5, 2024
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Abstract
A rotary component for a gas turbine engine includes a plurality of rotor blades operably coupled to a rotating shaft extending along the central axis and an outer casing arranged exterior to the plurality of rotor blades in a radial direction of the gas turbine engine. The outer casing defines a gap between a blade tip of each of the plurality of rotor blades and the outer casing. The outer casing includes a plurality of features formed into an interior surface thereof. Each of the plurality of features includes one or more design parameters that are perturbed about a mean design parameter for stall performance so as to provide a circumferential variation in wake strengths associated with the plurality of rotor blades, thereby reducing operational noise of the gas turbine engine.
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