# ENGRCEE 178 Fluid Mechanics of Open Channels (2015-2016)

#### ENGRCEE 178 Fluid Mechanics of Open Channels

**ENGRCEE 178 Fluid Mechanics of Open Channels (Credit Units: 4)** Fundamentals of fluid motion in open channels. Navier-Stokes equations and one-dimensional momentum and energy principles. Topics include rapidly varied flow, flow resistance and turbulence, gradually varied flow, unsteady flow, and computational methods for channel flow modeling. Prerequisite: CEE20 or MAE10; CEE170 or MAE130A. Civil Engineering and Environmental Engineering majors have first consideration for enrollment. Concurrent with ENGRCEE 278. (Design units: 1)

- Henderson, F. M. Open Channel Flow, Macmillan, 1966.
- Chow, V.T. Open-Channel Hydraulics, McGraw-Hill, 1959.
- Ippen, A.T. Estuary and Coastline Hydrodynamics, 1966.

1. Be introduced to the Navier Stokes equations governing fluid flow. (EAC a, EAC e)

2. Apply integral equations (mass, energy and momentum concepts) to describe rapidly varied flow. (EAC a, EAC e)

3. Apply the Manning Equation and Chezy Equation to describe uniform flow. (EAC a, EAC k)

4. Classify gradually varied flow profiles. (EAC a, EAC k)

5. Recognize the unsteady flow equations and understand the concept of characteristics. (EAC a, EAC e)

6. Develop simple software that solves open channel flow equations, and apply the software for analysis and design purposes. (EAC a, EAC k)

Elementary fluid mechanics: continuity, momentum, and energy principles.

- Navier Stokes Equations (Week 1)
- Specific Energy (Week 2)
- Momentum (Week 3)
- Uniform Flow (Week 4)
- Gradually Varied Flow (Week 5, 6)
- Governing Equations of Unsteady Flow (Week 7)
- Solution Methods for Unsteady Flow (Week 8)
- Simplified Methods of Flow Routing (Week 9)
- Sediment Transport (Week 10)

Meets for 3 hours of lecture and 1 hour of discussion each week for 10 weeks.

Students use computers to find roots of nonlinear equations, integrate ordinary differential equations, and integrate partial differential equations. Required Lab Software: Matlab.

None.

Contributes toward the Civil Engineering Major design experience and Environmental Engineering Major design experience.

Students carry out a design project that involves developing software to predict gradually varied flow, applying the software to evaluate the impact of proposed stream-bed alterations on flooding and streambed erosion, and using the software to suggest alternative streambed alterations that mitigate flooding and erosion impacts.

- Homework: 20%
- Design Project: 10%
- Midterm Exam: 30%
- Final Exam: 40%
- Total: 100%

Mathematics and Basic Science: 0.0 credit units

Computing: 0.0 credit units

Engineering Topics: 4.0 credit units

Engineering Science: 3.0 credit units

Engineering Design: 1.0 credit units