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List of top Fluid Mechanics Questions on Open Channel Flow asked in GATE CE

A hydraulic jump occurs in an open channel when the slope of the channel changes from ___________.
 

  • GATE CE - 2025
  • GATE CE
  • Fluid Mechanics
  • Open Channel Flow

Consider flow in a long and very wide rectangular open channel. Width of the channel can be considered as infinity compared to the depth of flow. Uniform flow depth is 1.0 m. The bed slope of the channel is 0.0001. The Manning roughness coefficient value is 0.02. Acceleration due to gravity, \( g \), can be taken as 9.81 m/s\(^2\).
The critical depth (in m) corresponding to the flow rate resulting from the above conditions is ________ (round off to one decimal place).
 

  • GATE CE - 2025
  • GATE CE
  • Fluid Mechanics
  • Open Channel Flow

A compound symmetrical open channel section as shown in the figure has a maximum of  critical depth(s).

  • GATE CE - 2023
  • GATE CE
  • Fluid Mechanics
  • Open Channel Flow

The critical flow condition in a channel is given by [Note: $\alpha$ – kinetic energy correction factor; $Q$ – discharge; $A_c$ – cross-sectional area of flow at critical flow condition; $T_c$ – top width of flow at critical flow condition; $g$ – acceleration due to gravity]

  • GATE CE - 2023
  • GATE CE
  • Fluid Mechanics
  • Open Channel Flow