A 1.3-m wide rectangular channel with a bed slope of 0.00019 has a depth of flow of 0.8m. Manning’s roughness coefficient is 0.017. (a) Can Manning’s equation be applied to this system (i.e., is the flow fully turbulent)? (b) Regardless of the answer to part a, determine the steady uniform discharge in the channel.

A 1.3-m wide rectangular channel with a bed slope of 0.00019 has a depth of flow of 0.8m. Manning’s roughness coefficient is 0.017. (a) Can Manning’s equation be applied to this system (i.e., is the flow fully turbulent)? (b) Regardless of the answer to part a, determine the steady uniform discharge in the channel.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

In 1957 H. Görtler proposed the adverse gradient test cases U =- U. (1 + x/L)" and computed separation for laminar flow at n = 1 to be Xsep/L = 0.159. Compare with Thwaites's method, assum- ing 0, = 0.
For a flow in a rectangular channel of width 5 m and depth of flow of 2.3 m the Darcy Weisbach friction factor f is estimated to be 0.02. Estimate the values of Chezy's C and Manning's n.
Part 1 Water flows in a 5-ft-wide rectangular channel with a flowrate of Q = 30 ft/s and an upstream depth of y1 = 2.5 ft as shown in the figure below. Determine (a) the flow depth and (b) the surface elevation at section (2). Assume h2 = 0.2 ft. h, (2) (1) Concepts Bernoulli's equation applies along a streamline to frictionless flow Volume flowrate is constant for steady, incompressible flow There are two possible depths when the flow area changes in an open channel The Froude number indicates whether the flow is subcritical, critical, or supercritical (a) What is the velocity at section 1? i ft/s (b) What is the total energy of the flow at section 1, with the elevation of the bottom of the channel at section 1 as reference? ft (c) What is the Froude number of the flow at section 1? i (d) Is the flow at section 1 subcritical, critical, or supercritical?
1. In a system with 4 reservoirs and 1 pipe junctions, how many hydraulic headloss equations are formulate? A. 3B. 2C. 1D. 4E. 5 2. In turbulent flow, which is correct?BJ: higher Re value has lower friction factorJB: lower Re value has lower friction factorGroup of answer choices A. BJ is true and JB is false B. BJ is true and JB is true C. BJ is false and JB is false D. BJ is false and JB is true 3.which of the following is always the same for horizontal closed conduit? A. Total headB. Velocity headC. Elevation headD. Pressure head
1. Which of the following least affects hydraulic gradient or slope of HGL? A. PIPE LENGTHB. PIPE DIAMETERC. TYPE OF PIPED. FLOE RATE 2. In laminar flow, which is correct?BJ: higher Re value has higher friction factorJB: lower Re value has lower friction factorGroup of answer choices A. BJ is false and JB is true B. BJ is false and JB is false C. BJ is true and JB is false D. BJ is true and JB is true 3. In a system with 4 reservoirs and 2 pipe junctions, how many continuity equations are formulate? A. 3B. 2C. 1D. 4E. 5
Uniform flows occur in a 10 meter wide rectangle channel. The flow in the channel is 18.4 m³/s and the depth of flow is 1.2 m. Roughness coefficient n = 0.012. Calculate the boundary stress
What is the total flow rate of the given figure if the channel slope is 0.17° andn =0.012? Use Kutter’s formula for C. Use 3 decimal places all throughout the solution. Box/underline your finalanswer.
Q. The hydraulic radius (m) for a circular pipe of diameter (D) behaving as open channel is given by ?
Question 2 Figure 2.1 shows the formation of a hydraulic jump in a rectangular open channel having a base width, B, of 3 m, a bed slope of 0.004, the Manning's coefficient, n, of 0.01 and a discharge, Q, of l15 m³/s. Determine the state of flow, yı and the head loss in the jump. Y2 Yo So = 0.004 n= 0.01 Fr,1 Figure 2.1: Hydraulic Jump
CORRECT LETTER PLS 1. Which of the following least affects hydraulic gradient or slope of HGL? A. PIPE LENGTHB. PIPE DIAMETERC. TYPE OF PIPED. FLOE RATE 2. In laminar flow, which is correct?BJ: higher Re value has higher friction factorJB: lower Re value has lower friction factorGroup of answer choices A. BJ is false and JB is true B. BJ is false and JB is false C. BJ is true and JB is false D. BJ is true and JB is true 3. In a system with 4 reservoirs and 2 pipe junctions, how many continuity equations are formulate? A. 3B. 2C. 1D. 4E. 5
For Manning's Equation, the letter A/P represents the hydraulic radius. * O False O True The Kirpich equation is used to forecast flood * False True The shape of the hydrograph is affected by different parameters. False O True
A rectangular channel carries a discharge of 80 m³/s. The median particle diameter of the suspended load is 3.0 mm. The channel conveyance factor is 800. Use v = 1.14*10⁰. Determine the following: (a) Chezy's Coefficient and D-W friction factor (b) Bed slope required to be provided (c) Normal flow width, depth and mean velocity (d) Critical flows: depth, velocity, slope and specific energy (e) Reynolds number and Froude number and state their status (f) Normal depth of flow at a discharge of 40 m³/s (g) Comment on the applicability of Manning's Equation Se