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← ScienceWhich mechanism causes increased drag when airflow exceeds an aircraft wing's laminar flow boundary?
A)Adverse pressure gradient separation✓
B)Decreased dynamic fluid viscosity
C)Increased favorable pressure gradients
D)Streamwise induced flow independence
💡 Explanation
An adverse pressure gradient separates the laminar flow because kinetic energy fails to overcome rising pressure, triggering turbulence; therefore, increased form drag develops, rather than reduced drag from laminar flow or simplified viscous independence.
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