CE 473 Open Channel Hydraulics

Credit Structure: (3-0)3

Catalog Description:
General equation of gradually varied flows (GVF). Types of channel slopes. Characteristics and classification of GVF profiles. Solution of GVF equations. Characteristics of rapidly varied flow. Flow over spillways. Crest shape and discharge of the overflow spillways. Basic characteristics of the jump. Stilling basins. Flow measurement in open channel. types of flow measurement structures. Sharp-, short-, and broad-crested weirs.

Course Objectives:
The main objective of the course is to give students detailed information about some of the topics which are not covered by CE 372. After taking this course students will be having all the hydraulic knowledge related to steady open channel flows.

Prerequisites:
CE 372

Textbook(s):
V.T. Chow, “Open Channel Hydraulics”, McGraw-Hill, 1959.

Reference(s):
F.M. Henderson, “Open Channel Flow”, McMillan Company, 1966.
U. S. B. R., “Design of Small Dams”, 1977.

Syllabus:
1. Introduction
2. Gradually Varied Flow: General equation of GVF, types of channel slopes, characteristics of flow profiles, classification of flow profiles, solution of GVF equations, direct and standard step methods
3. Rapidly Varied Flow: Characteristics of RVF, flow over spillways, the sharp-crested weir, crest shape and discharge of overflow spillways, effect of piers in gated spillways, pressure on overflow spillways, hydraulic jump and its use as energy dissipater, jump in horizontal rectangular channels, types of jump, basic characteristics of the jump; the length, surface profile and location of jump; control of jump by sill and abrupt drop, the SAF stilling basin, USBR stilling basins II and IV, the straight drop spillway, jump in sloping channels.
4. Flow Measurement Structures for Open Channels: Flow measurement in open channel, types of flow measurement structures, types of sharp- and broad-crested weirs, critical-depth flumes and Parshall flumes.

Homeworks, Quizzes, Projects:
None

Computer Usage:
Optional. Students are encouraged to use computer (PC) in solution of homeworks. Especially in computation of GVF profiles, the use of worksheet type of programs or programs that they may write in FORTRAN language are advised.

Laboratory Works:
None

Category Content:
Mathematics and Basic Sciences: None
Engineering Design: 2 credits
Engineering Sciences: 1 credit
Humanities & Social Sciences: None
Departmental: None

Instructors:
Nuray Tokyay