Which outcome of a hypersonic vehicle's flight results from too high of a Reynolds number gradient in the boundary layer?

💡 Explanation

A high Reynolds number gradient promotes a laminar-turbulent transition because amplification of disturbances via the **Tollmien-Schlichting wave instability** becomes dominant; therefore, premature boundary layer transition to turbulence occurs, rather than sustained laminar flow providing lower drag, and preventing heating.

• Which consequence results when a rocket's acceleration approaches the limit where inertial effects mirror gravity?
• Which outcome results when metastable Technetium-99m undergoes isomeric transition?
• Which consequence results when a catalyst's active site fails?
• Which risk increases when the gap between capacitor plates narrows?
• Which outcome occurs when a transmission line's capacitance increases?
• Which outcome occurs when airflow exceeds a turbofan's design limit?