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← ScienceWhich outcome decreases hydraulic jump height in open channels?
A)Increased upstream Froude number
B)Decreased flow channel roughness
C)Increased fluid dynamic viscosity✓
D)Decreased downstream flow depth
💡 Explanation
Hydraulic jump height reduces with increased viscosity because increased viscous dissipation converts more kinetic energy into heat rather than turbulent kinetic energy. Therefore heightened fluid dynamic visocsity diminishes jump height rather than increasing number Froude affecting momentum transfers.
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