Which mechanism induces turbulent flow when the threshold dimensionless number is exceeded in a pipe?

💡 Explanation

A high Reynolds number signifies inertial forces overcoming viscous forces, therefore flow destabilizes leading to turbulence emergence via instability, because flow transitions from laminar to turbulent. Rather than alternatives, viscous forces dominate at smaller Reynolds numbers.

• Which outcome primarily dictates the reaction rate in heterogeneous catalysis within a packed bed reactor?
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• Which outcome is observed when increased temperature shifts equilibrium of exothermic reaction in a fixed volume reactor?
• Which outcome diminishes when multiple lasers lack coherence?
• Which outcome happens when an electron encounters potential barrier smaller than its kinetic energy?
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