This effort aims to minimise noise from the central jet of a Turbo Fan Engine using Flow Deflectors. Of these, which one is appropriate for thrust propulsion systems? By attaching a deflector to the secondary nozzle, we will lower the engine's noise level. The secondary nozzle's cold air is affected by the deflector's positioning, with the velocity gradient decreasing in one direction and rising in the other. The differential pressure falls as the kinetic energy gradient rises, which lowers the noise level. Given that the relationship between the pressure in a gaseous pollutant and the square of the sound
Key words: Flow Deflectors, a Turbo Fan Engine, secondary nozzle, elocity gradient
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