Open Channel Hydraulics and Design
DISCLAIMER
Before undertaking any on-demand effort, you should review the rules of your licensing/certifying entity.
It’s your responsibility to determine whether this on-demand course meets your continuing education requirements.
You must take and pass a quiz to receive credit. You can take the quiz as many times as needed and there is no time limit on the quiz.
Once the quiz is completed, you will be asked to download your certificate.
**Any on-demand programs that qualify for AIA or LACES credit will require an additional 2 business weeks for processing.
**AIA credit is not available in USB format.
Streamable MP4/PDF
You will receive an automated email letting you know when your On-Demand package is available approximately 3 business days after the date of the live event or the date of your order, whichever is later.
**Any streamable on-demand programs that qualify for AIA or LACES credit will require an additional 2 business weeks for processing.
The automated email letting you know when your On-Demand package is available will contain links to the video recording, materials, and program quiz.
To track your purchase, you will need to create an account on the website using the email address used for your registration.
For AIA requirements only, the on-demand recording will have occasional question prompts that will not allow the video to progress unless they are answered, and you will not be able to skip forward while watching the video.
Please note, if you attempt to resume watching the video on a separate device, your progress will not be saved.
Click the link which appears at the end of the video to be taken to the course quiz.
You will have unlimited access to the on-demand video recording, and it will never expire.
USB MP4/PDF
HalfMoon will mail these materials via USPS.
USB orders ship approximately 3 business days after the program takes place or after the order is placed, whichever date is later. Please allow an additional 7-10 business days for shipping.
**Any USB on-demand programs that qualify for LACES credit will require an additional 2 business weeks for processing.
**AIA credit is not available in USB format.
The link to the quiz will be available in a PDF in your USB drive marked QUIZ.
HalfMoon will contact you and issue a full refund if the product you ordered is not available. However, refunds will not be issued if completion certificates are requested.
Please contact HalfMoon Education if you have any questions during the process of taking this course. (715) 835-5900 or qchapman@halfmoonseminars.org
Agenda
Webinar instructions will be emailed before the date of the webinar.
Please log into the webinar 15 – 30 minutes before the start time.
Tuesday, December 17, 2024
8:30 am – 4:00 pm CST
Presented by: William Rahmeyer
Understanding Open Channel Flow
- Course expectations
- Concepts of open channel flow design not covered by textbooks
- Steady and unsteady flow
- Uniform and normal flow
- Reynold’s number
- Laminar and turbulent flow
- Definitions
- Conservation principles
- Conservation of mass continuity
- Hydraulic radius
- Hydraulic efficiency
- Effective diameter
- Channel shapes and properties
- Hydraulic elements chart for partially full circular pipe
- Conservation of energy and the energy equation
- Local energy losses
- Specific energy diagram
- Energy correction factor
- Example of solving a converging channels problem
- Hydraulic and energy grade lines
- Review
Fundamentals of Open Channel Flow
- Froude number
- Critical depth
- Flow regimes of super and subcritical flow
- Manning’s equation
- Normal depth
- FHWA Hydraulic Toolbox
- Channel slope definitions
- Compound channels
- Example of solving a compound channel for flow
- Example of solving a compound channel for normal depth
- Conservation of momentum
- GVF Gradually varied flow
- Types of GVF curves
- Examples of different types of open channel flows
- Where the calculation of flow depth and discharge starts in a flow system
- Review
Flow Resistance in Open Channels
- Flow resistance and resistance coefficients
- Boundary shear stress and resistance
- Resistance coefficients
- Resistance coefficients for rigid boundaries
- Resistance coefficients for natural boundaries
- Turbulent equations for natural boundaries
- Size distribution of alluvial material
- Friction factors (ASCE) for natural channels
- Cowan’s equation for additive resistance
- Bed forms and bed form resistance
- Vegetated surfaces and resistance
- Solution of normal depth in a compound channel with variable resistance
- Stage discharge diagram
- Lotter effective n
- Brief introduction to HEC-RAS
- Effect of sediment transport on resistance
- Review
Principles of Open Channel Flow Design
- Classification of gradually varied flow curves
- Upstream and downstream control
- Review of gradually varied flow
- Synthesis of composite gradually varied flow profiles
- Locations of choked flow in channel transitions
- Channel transitions and example of a reservoir to steep channel transition
- Standard step method to find the length of a GVF curve
- Example of the standard step method to find the length of a M1 GVF curve
- Rapidly varied flow
- Hydraulic jumps
- Hydraulic jumps with GVF
- Conjugate depths of hydraulic jumps
- Locating hydraulic jumps in composite GVF profiles
- Example of creating a composite GVF profile
- Optional assignments to sketch composite GVF profiles
- Finding the location of a H.J. between two GVF profiles
- Choked flow in transitions
- Calculating flow depths in open channels
- Review
Stable Channel Design
- Example of solving an open channel problem with diverging channels
- Alluvial channel design
- Flood and storm runoff
- Sedimentation, erosion, and deposition
- Sediment transport
- Fluvial geomorphology
- Local scour
- Channel bank and bed protection
- Tractive force and permissible maximum velocity methods
- Riprap protection
- Hydraulic structures (including culverts) used in open flow channels
- Flow measurement structures
- Considerations for designing an open channel
- Review
Webinar Instructions
All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.
Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.
Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.
GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)
Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled.
Internet connection: Minimum of 1Mbps Hardware: 2GB RAM or more
For more information, visit the Support section at www.gotowebinar.com
Credits
Engineers
6.5 PDHs
Landscape Architects
6.5 HSW CE Hours
LACES - Landscape Architecture Continuing Education System
6.5 HSW PDHs
Floodplain Managers
6.5 ASFPM CECs
Continuing Education Credit Information
This webinar is open to the public and is designed to qualify for 6.5 PDHs for professional engineers and 6.5 HSW continuing education hours for landscape architects in all states that allow this learning method. Please refer to specific state rules to determine eligibility.
HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider License No: CEA362), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00049300) and North Carolina (S-0130). HalfMoon Education is deemed an approved continuing education sponsor for New York engineers and landscape architects via its registration with the Landscape Architecture Continuing Education System (LA/CES).
The Landscape Architecture Continuing Education System has approved this course for 6.5 HSW PDHs. Only full participation is reportable to the LA CES.
This Association of State Floodplain Managers has approved this course for 6.5 CECs for floodplain managers.
Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (multiple attempts allowed).
On-Demand Credits
The preceding credit information only applies to the live presentation. This course in an on-demand format is not pre-approved by any licensing boards and may not qualify for the same credits; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate. The following pre-approvals may be available for the on-demand format upon request:
6.5 HSW PDHs (LA CES)
Speakers
William J. Rahmeyer
Emeritus Professor, Civil and Environmental Engineering, Utah State UniversityWilliam Rahmeyer is an emeritus professor of Civil and Environmental Engineering at Utah State University (USU), and for 31 years he was on the faculty at USU and for 10 years as research faculty at Colorado State University. Professor Rahmeyer is the past department head of Civil and Environmental Engineering at USU as well as the senior professor of the Hydraulics and Fluid Mechanics program of the Utah Water Research Laboratory. He also served at USU as the director of the Hydro Composite Modeling Program, the division head of Water Engineering, the interim division head of both the Structures Division and the Transportation Division, and as the Undergraduate Curriculum Division head. Professor Rahmeyer is currently part-time as a senior associate for Ayres and Associates in Fort Collins, Colorado where his primary role is to conduct national workshops in hydraulics, culvert flow, and urban drainage for the National Hydraulic Institute of FWHA. He is a fellow and lifetime member in the American Society of Civil Engineers. Professor Rahmeyer has been a member of several professional societies, and serve on committees for the American Society of Engineering Educators (ASEE), the American Society of Civil Engineers (ASCE), the International Association of Hydraulic Research (IAHR), the Association of State Dam Safety Officers (ASDSO), the Instrument Society of America (ISA), the American Water Works Association (AWWA), the International Erosion Control Association (IECA), and the American Society of Heating and Refrigeration Association (ASHRAE). He has regularly attended and presented at the annual conferences of ASDSO, ASEE, ASCE, IAHR, ASCE National Department Heads, and the Transportation Research Board (TRB). In the past, he has been a member of the United States Committee on Large Dams (USCOLD) and the International Committee on Large Dams (ICOLD). Over the last several years, Professor Rahmeyer has created and presented a workshop on open channel flow for Half Moon Education and finished serving on the Bluestone Dam UASCE IEPA and on several 100% DDR review panels for the USACE. He has been on the board of directors for the Utah Floodplain and Storm Water Management Association since 1986. Professor Rahmeyer was a member the 2008 Bettelle “Final Independent Peer Review Report for U.S. Army Corps of Engineers on the Vegetation Policy for Local Flood Damage Reduction Systems” which reviewed many of the guidelines and policies for management of levees, floodwalls, embankment dams, and appurtenant structures. Some of his recent awards include the AHRAE Technical/Symposium Paper Award, the ASHRAE Crosby Field Award for Research, and the South Pacific Division Regional Project Delivery Team Award from the U.S. Army Corps of Engineers. He has received the Idaho Transportation Department 2012 Excellence in Transportation Award and the 2011 ACEC of Idaho Engineering Excellence Grand Award for the I-84 New York Canal Modeling and Modification. Professor Rahmeyer further received an honorable mention at the 2012 National AECE award ceremonies for his work with the I-84 New York Canal.
6.5 Knowledge Points
Purchase this course using Knowledge Points by clicking the button below.
(Account login required. Knowledge Points can only be redeemed by the owner of the points. Cannot be combined with any other forms of payment)
