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← ScienceWhich outcome occurs when adiabatic expansion rapidly decreases temperature in a jet engine's turbine stage?
A)Compressor stall via boundary layer separation✓
B)Fuel detonation from increased density
C)Blade creep from thermal stress
D)Oxidation catalyst efficiency enhancement
💡 Explanation
When adiabatic expansion causes a sudden temperature drop, the boundary layer thickens due to the increased viscosity of the colder, slower-moving air near the turbine blades, increasing the risk of boundary layer separation which can cause compressor stall. Therefore compressor stall happens, rather than detonation, creep, or enhanced catalysis, which depend on pressure or temperature increase instead.
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