Which outcome results when a pipe's internal roughness increases, exceeding the laminar flow constraints?

💡 Explanation

Increased roughness triggers a transition to turbulent flow due to increased momentum transfer via eddy viscosity. Therefore, skin friction drag increases because greater surface interaction results from chaotic flow patterns, rather than streamlined movements.

• Which process decreases when increased temperature lowers activation energy?
• Which outcome results when exceeding compression limits during adiabatic compression within a Carnot engine?
• Which risk increases when water within a sealed steam turbine undergoes significant phase change?
• Which outcome accelerates microcrack growth on turbine blades?
• Which performance limitation arises when operating a Carnot engine with a small temperature difference?
• Which consequence results when an exhaust catalyst degrades?