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← ScienceWhich outcome occurs when laminar flow transitions in a pipe?
A)Increased flow resistance and pressure drop✓
B)Decreased momentum transfer by viscosity
C)Fluid density reaches critical Reynolds number
D)Formation of stable boundary sub-layer
💡 Explanation
When laminar flow transitions in a system, turbulence causes increased momentum exchange and energy dispersion, leading to greater flow resistance because momentum diffusivity rapidly increases. Therefore greater resistance occurs in transitioning pipes, rather than lower resistance, due viscosity decrease or a constant density condition.
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