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Open Channel Hydraulics II - Non-Uniform Flow



Webinar Title: Open Channel Hydraulics II - Non-Uniform Flow
Webinar No: C03-201W
PDH Credit: 3
Presenter: Harlan Bengtson, Ph.D., P.E.
Time: From 12:00 PM to 3:00 PM ET
This live webinar presents the parameter "specific energy" as well as the concepts of critical, subcritical and supercritical flow.
Please note that this purchase is valid for a single webinar presentation held at the specified time.
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Open Channel Hydraulics II - Non-Uniform Flow
Course Highlights

This online engineering PDH live webinar presents the parameter “specific energy” which will first be used to introduce the concepts of critical, subcritical and supercritical flow.  It also presents various calculations related to critical, subcritical and supercritical flow, including hydraulic jump calculations. It discusses the thirteen possible types of gradually varied non-uniform flow surface profiles.  It illustrates the procedure and equations for step-wise calculation of gradually varied non-uniform surface profiles through the use of examples.


Many examples of open channel flow can be approximated as uniform flow allowing the use of the Manning equation for calculations.  However, non-uniform flow calculations are needed in some open channel flow situations, in which the flow is clearly non-uniform.  The concepts of supercritical, subcritical and critical flow, along with calculations related to those three flow regimes are need for non-uniform open channel flow analysis and calculations.


This 3 PDH online live webinar is intended primarily for civil, hydraulic, highway, environmental, chemical, mechanical, and industrial engineers, who are interested in learning more about open channel hydraulics.

Learning Objectives

This PE continuing education live webinar is intended to provide you with the following specific knowledge and skills:

  • Determining the critical depth for a specified volumetric flow rate through a rectangular channel of specified bottom width
  • Determining the critical slope for a specified volumetric flow rate through an open channel of specified shape, size, and Manning roughness coefficient, with known critical depth
  • Determining whether a specified volumetric flow rate through an open channel of given shape & size with known depth of flow will be critical, subcritical or supercritical flow
  • Calculating the depth of flow after a hydraulic jump if given the depth of flow before the hydraulic jump, the volumetric flow rate and the shape and dimensions of the open channel.
  • Identifying which type of surface profile (e.g. M1, M2, M3, S1, S2, S3, etc.) is present in a specified gradually varied flow situation
  • Performing stepwise calculation of the surface profile for a specified gradually varied, non-uniform open channel flow
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Webinar Access

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Regardless of the connection method used, you will have the opportunity to interact with the instructor at the appropriate times either way. We recommend that you connect to the webinar approximately 10 to 15 minutes prior to the scheduled start time.

Certificate of Completion (PDH Credit)

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Following submission of your feedback form, we will email you your Certificate of Completion. You can also download your Certificate of Completion instantly, or at anytime, directly from your account. This is where all your PDH records are kept for your convenience at all times.

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If you register but you cannot attend due to unforeseen circumstances, we will issue a full refund if you notify us of your cancellation 24 hours in advance. If you must cancel in less than 24 hours, we will offer you a free webinar of equal value that you can attend at a date of your convenience. There is no expiration to your purchase so you don’t have to worry.

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