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← ScienceWhich outcome occurs when a jet engine exhaust induces instabilities?
A)Increased acoustic noise production✓
B)Decreased turbine blade temperature
C)Improved combustion chamber mixing
D)Reduced fuel consumption rate
💡 Explanation
Turbulence transitions from laminar flow because jet engine exhaust's **shear layer instability** dramatically increases Reynolds number. This causes significant amplification of disturbances, therefore increased acoustic noise is produced, rather than lower temperatures or fuel reduction in a turbulent state.
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