Which mechanism reduces the fluid velocity near turbine blades?

💡 Explanation

Boundary layer formation reduces fluid velocity because viscosity causes a no-slip condition at the surface; therefore boundary layer decreases speed, rather than tension, expansion, or cavitation influencing near-blade velocities.

• Which constraint dominates when maximizing efficiency in a regenerative gas turbine cycle?
• Which outcome occurs when endothermic reaction in catalytic converter has insufficient activation energy at startup?
• Which limitation occurs if a telescope objective exhibits imperfections?
• Which outcome regarding iron-56 (⁵⁶Fe) arises because it minimizes system energy?
• Which outcome occurs when an oscillating voltage is applied across a piezo crystal?
• Which outcome occurs when potassium-40 decays within granite?