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← ScienceWithin a hydraulic jump downstream of a dam spillway, which process causes significant energy dissipation?
A)Turbulent kinetic energy cascade✓
B)Increased laminar flow stability
C)Reduced hydrostatic pressure gradient
D)Enhanced surface tension effects
💡 Explanation
Energy dissipates as the chaotic kinetic energy of the turbulent eddies transfers to smaller scales via the turbulent kinetic energy cascade because the Reynolds number is high. Therefore, energy dissipates rapidly rather than exhibiting laminar streamline behaviour because of high momentum.
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