ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Hydraulic Design of Spillway Plunge Pool Linings
The design of plunge pools for high head spillways with flip bucket terminal structures often requires a detailed examination of the stability of the resulting scour hole in the river...

Estimation of Spillway Free Jet Trajectory Lengths
The design of high head spillways with flip bucket terminal structures must include analysis of the length of the free jet issuing from the spillway. Prototype jet trajectory lengths are...

Using the Weir Back as an Energy Dissipator
The effect of weir back in energy dissipation is investigated experimentally and theoretically. The study includes four different shapes of weir back. The boundary friction force and the...

Design Considerations for Use of Wedge Wire Screens at Surface Water Intake Structures
This paper provides the suggested guidelines for design, construction, operation and maintenance of wedge-shaped wire cylindrical screens used for aquatic biota and trash and debris screening...

Numerical Simulation of One Dimensional Transcritical Flow
The term transcritical flow describes the existence of both subcritical and supercritical flow simultaneously within the computational domain. Transcritical flow situations are encountered...

Energy Dissipation for a RCC Stepped Spillway
A two-dimensional physical model study was used to quantify the kinetic energy dissipation of the steps in a roller compacted concrete (RCC) stepped spillway. The steps were effective...

Use of FESWMS-2DH for the Attaway Road Bridge Repair Project
The paper presents the application of the Finite Element Surface Modeling System: Two Dimensional Flow in a Horizontal Plane (FESEMS-2DH) computer program in the Attaway road bridge repair...

One- and Two-Dimensional Analysis of Flow in Hotophia Creek, MS
A numerical experiment on the influence of a sand bar encroachment on the stream flow pattern is reported. The results of a two-dimensional analysis were compared with results of an equivalent...

Roughness Coefficient in Mountain Rivers
River discharge estimations require an evaluation of the river flow resistance that generally is related with Manning's roughness coefficient. The literature suggests different ways of...

Steep Constructed Stream Channels and Chutes
Research and technology transfer needs are described for steep stream channels and chutes. Iterative processes are presented for design and construction of bouldery channels and chutes...

An Alternative Equation for the Mean Velocity in Gravel-Bed Rivers and Mountain Torrents
Including new field data in the slope range of torrents up to 63%, an empirical equation is developed to express the mean flow velocity in terms of the flow rate, the slope and a characteristic...

At-A-Site Mountain River Flow Resistance Variation
At-a-site variation in flow resistance is examined in the light of observations of an S-shaped velocity profile at relative submergences (d/D₈₄)...

Evaluating Flow Resistance Using Height of Roughness Protrusions
On the basis of field measurements on the Sumava mountain rivers heights of roughness protrusions have been used for calculation of flow resistance. The result resistance equations, compared...

Flow Resistance of High-Gradient Gravel Channels
The flow resistance in terms of the friction factor for bank-full or high in-bank flows for 120 high-gradient gravel-bed rivers are examined. The friction factor f was divided into grain...

Supercritical Flows Versus Subcritical Flows in Natural Channels
Many analysts model large discharges and/or high-gradient reaches as supercritical flow. While this assumption may be valid for man-made channels of smooth, non erosive materials, and...

Step-Pool Streams: An Adjustment to Maximum Flow Resistance
An experiment was conducted to study the maximum flow resistance of step pool streams and the morphology of the steps formed from clastic materials. The step pool formation was qualitatively...

Relation Between Largest Known Flood Discharge and Elevation in Montana
Previous studies relating unit discharge to elevation indicated that large floods in the Rocky Mountains may be limited by elevation. However, high-elevation data are sparse in Montana...

Historic-Flood Evaluation and Research Needs in Mountainous Areas
An evaluation of historic flood estimates in mountainous areas in Colorado was made to assess their accuracy. The purpose of this evaluation is to enhance awareness of the need to assess...

3D model verification for a groyne and harbor experiment
A discussion of 3D model verification and calibration based on measurements in a flume is carried out for different test cases (groyne, harbor). The measurement data is available for public...

Estimation of Design Surge Heights by Utilizing Meteorologic and Oceanographic Data
Data on cyclonic storm surge height have been generated with the help of a statistical simulation model. Data on observed maximum cyclonic wind speed and the length of the continental...

 

 

 

 

Return to search