Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Civil Engineering Expert

problem 1: Sketch the water surface profiles for the cases below. Label the normal and critical depth lines as well as all of the water surface profiles.

1396_normal and critical depth lines.jpg

In part (b), the conjugate depth of the normal depth in channel section A is greater than the normal depth in section B. The conjugate depth of the normal depth in section C is less than the normal depth in section D.

problem 2: An early horizontal,12ft wide rectangular channel carries 60 cfs at a depth of 3.0 ft. The width of the channel is smoothly contracted to 6 ft at the downstream section.

(a) Determine if the flow will choke and both the downstream and upstream water depths.

(b) If there is also a 1 ft high step up in bottom elevation at the contraction, determine if the flow will choke and both the downstream and upstream water depths.

problem 3: A rectangular channel of width 12fth as an upstream slope of 0.02ft/ft and a downstream slope of 0.0005 ft/ft. Both reaches have lengths of 500 ft. The upstream reach has a Manning’s roughness of 0.016 and the downstream reach has a roughness of 0.011. The design discharge is Q = 460cfs, the low flow discharge is Q = 230cfs, and the flood discharge is Q = 690cfs.

a) Using the direct step method by hand with 1 step, determine the location of the hydraulic jump relative to the slope break for the design discharge. Classify the jump type and find out the energy lost.

b) Design an Excel spreadsheet to find out the location of the hydraulic jump relative to the slope break using a depth step size of 0.01 ft for the design discharge. All lengths and water depths must be accurate to 2 decimal places. Plot the water surface profile relative to the slope break.

problem 4: In HEC-RAS, model this system as 1 reach with cross-sections every 2 ft. For all 3 discharges (labeled as: design, low, flood),

a) Determine the water depths 10 ft from the upstream and downstream boundaries.

b) Determine the location of the hydraulic jumps (in ft from the slope break).

c) Output the water surface profile plots with all 3 discharges, including the water surface, energy grade line, and critical depth line.

problem 5: Consider a trapezoidal channel with a bottom width of 4 m, side slopes of 3:1 (H:V), and a bottom slope of 0.002 that carries 50 cms. The channel has a Manning’s roughness of 0.034.

a) Using the standard step method, determine the water depth 40 m up-stream of a location with a depth of 2 m.

b) Design an Excel spreadsheet to find out the following reach steps. All lengths and water depths must be accurate to 2 decimal places.

643_reach steps.jpg

Plot the water surface profile.

problem 6: For the model of Fall River and Butte Creek (Chapter 4 in the User Manual) in HEC-RAS,

a) Output the cross-section of all three Flood events for station 9.8 on one figure. Include only the water surface and energy grade line.

b) Output the profile of Butte Creek and the Lower Reach of the Fall River for all events on one figure. Include only the water surface and energy grade line.

c) Output the three dimensional view of the water surface profile the 50 year flood. Use a rotation angle of 25 degrees and an azimuthal angle of 30 degrees.

Civil Engineering, Engineering

  • Category:- Civil Engineering
  • Reference No.:- M9352

Have any Question? 


Related Questions in Civil Engineering

1 design a light weight truss of steel or

1. Design a light weight truss of steel or aluminiumadnodized material of 2. Cantilever Span - 15 m with a load of 800 kg on the free end pl

Water is flowing through a circular channel at the rate of

Water is flowing through a circular channel at the rate of 400litres/sec,when the channel is having a bed slope of 1 in 9000.The depth of water in the channel is 8.0 times the diameter.find the diameter of the circular c ...

Write data analysis methods of aac autoclaved aerated

Write Data analysis methods of AAC (Autoclaved aerated concrete) in Oman. Attachment:- sample.rar

In all of our pattern recognition examples thus far we have

In all of our pattern recognition examples thus far, we have represented patterns as vectors by using "1" and "-1" to represent dark and light pixels (picture elements), respectively. What if we were to use "1" and "0" i ...

For the following transfer function tvs v2 s v1sa

For the following transfer function T V (s) = V 2 (s) =V 1 (s) (a) Construct the straight-line Bode plot of the phase. (b) Use the straight-line phase diagram to estimate the phase at ω = 10, 100, 1000, and 10,000 rad=s. ...

Consider an fsm constructed from m edge-triggered

Consider an FSM constructed from m edge-triggered flip-flops and an arbitrary number of two-input NAND gates, having an arbitrary number of inputs and containing no combinational cycles. What is the maximum number of sta ...

As in the application of radiation shields discussed in

As in the application of radiation shields discussed in Section 4.4.5, there are applications where the surface-radiation through multiple (thin, opaque solid) layers (or solid slabs) is of interest. This is rendered in ...

The flexible shaft ab of the wrench is bent into a

The flexible shaft AB of the wrench is bent into a horizontal arc with a radius of 24 in. The two 20-lb forces, which are parallel to the z-axis, are applied to the handle CD, as shown. Determine the combined moment of t ...

We have two categories of vectors category i consists

We have two categories of vectors. Category I consists of Category II consists of We want to train a single-neuron ADALINE network without a bias to recognize these categories (t = 1 for Category I and t = -1 for Categor ...

A divide-by-2 counter has the following specificationdesign

A divide-by-2 counter has the following specification. Design a divide-by-2 (that is, l-bit) counter using only one D flip-flop. You may also include any combinational logic you wish in your design, butry to minimize the ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen