1- Uniform flow passes through a rectangular channel having a width of 4 m. The channel carriers discharge of 12 m/s with a depth of 3 m at section 1. The bed is raised in section 2 by 20 cm and the velocity distribution changes due to bed roughness. Note: The energy loss is 10% of the velocity head at section 2. Velocity profile in section 2 can be expressed by a linear equation as v ky2. a) Write the energy equation b) Calculate the flow depth at section 2 c) Calculate the Froude number at sections 1 and 2₁ 3₁ Side vehw v₂-ky, Y/₂
1- Uniform flow passes through a rectangular channel having a width of 4 m. The channel carriers discharge of 12 m/s with a depth of 3 m at section 1. The bed is raised in section 2 by 20 cm and the velocity distribution changes due to bed roughness. Note: The energy loss is 10% of the velocity head at section 2. Velocity profile in section 2 can be expressed by a linear equation as v ky2. a) Write the energy equation b) Calculate the flow depth at section 2 c) Calculate the Froude number at sections 1 and 2₁ 3₁ Side vehw v₂-ky, Y/₂
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1- Uniform flow passes through a rectangular channel having a width of 4 m. The channel carriers a
discharge of 12 m³/s with a depth of 3 m at section 1. The bed is raised in section 2 by 20 cm and the
velocity distribution changes due to bed roughness.
Note: The energy loss is 10% of the velocity head at section 2.
Velocity profile in section 2 can be expressed by a linear equation as v ky2.
a) Write the energy equation
b) Calculate the flow depth at section 2
c) Calculate the Froude number at sections 1 and 2
of
Side vehw
Y/₂
Az
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