In fluid mechanics documentation, what term designates the non-dimensional ratio of inertial forces to viscous forces in a fluid flow?
Answer and explanation
Correct answer: D. Reynolds number
- Step 1: The Reynolds number () is the dimensionless parameter that determines whether a fluid flow is laminar or turbulent. Answer: Reynolds number. Why not the others: Prandtl number links kinematic viscosity and thermal diffusivity, Nusselt number measures convective heat transfer, and Mach number is the ratio of flow speed to the speed of sound.
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