Colorado State University. Department of Civil Engineering.
Author
Series
CER volume 80/81-46
Publisher
Department of Civil Engineering, Colorado State University
Pub. Date
1981.
Language
English
Description
An experimental study of techniques for modifying the surface shear stress, both mean and fluctuating, in turbulent boundary layers is reported. The surface shear along the test section of a 45.7 cm square wind tunnel, with a downstream expansion section, was determined by means of surface-hot-wire-heat-transfer-gauges. Turbulent boundary layers in both zero and adverse pressure gradients were evaluated.
Author
Publisher
Colorado Department of Transportation, Research Branch
Pub. Date
2009.
Language
English
Description
A new service life chart for steel pipes was developed based on the information collected from the field observations and data analysis. Pipe failure criteria were established in accordance with the ongoing culvert evaluation procedure along I-70 and I-25. For the steel pipe failure cases along I-70 and I-25, the previously published service life predictors for steel pipes deviated from observations by as much as 10 times.
Author
Series
Atmospheric science technical paper volume no. 18
Publisher
Colorado State University, Civil Engineering Section
Pub. Date
1961.
Language
English
Author
Series
CER volume 80/81-45
Publisher
Department of Civil Engineering, Colorado State University
Pub. Date
1981.
Language
English
Description
Response of the flow variables to external driving forces is non-linear for shear flows. For the turbulent boundary layer case, surface shear stress fluctuations of magnitude as great as the mean value are observed. For flow near the surface Prandtl's turbulent boundary layer approach of employing averaged Reynolds equation and a turbulence closure model is insufficient to account for surf ace shear fluctuations. A model which incorporates a discrete...
Author
Series
CER volume 59-12
Publisher
[Civil Engineering Section, Colorado State University, Colorado Agricultural Experiment Station]
Pub. Date
[1959]
Language
English
Author
Series
CER volume 74/75-5a
Publisher
Fluid Mechanics Program, Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University
Pub. Date
[1974]
Language
English
Author
Series
GRI topical report volume 79/0073
Publisher
Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University
Pub. Date
1980.
Language
English
Description
A terraced 1:240 scale model of the China Lake Naval Weapons Center was constructed to a resolution of one foot vertical increments and placed in the wind tunnel to determine the distances of lower flammability limit (LFL) for 1980, 40 cubic meter spills of Liquefied Natural Gas (LNG) under 4 wind speeds, 5 wind directions, and neutral flow conditions. Measurements of mean velocities, turbulence intensities, velocity spectra and correlations were...
Author
Series
CER volume 68/69-16
Publisher
Colorado State University, Engineering Research Center
Pub. Date
1968.
Language
English
Description
This project was initiated July 1, 1964, to study the feasibility of recharging excess or flood waters to an unconfined aquifer. The study included the selection of a site; design, construction, and maintenance of structures; data collection, analysis, and economic evaluation of artificial recharge.
Author
Series
Completion report volume no. 121
Publisher
Colorado Water Resources Research Institute, Colorado State University
Pub. Date
[1983]
Language
English
Author
Publisher
Civil Engineering Department, Colorado State University
Pub. Date
1984.
Language
English
Description
A morphological and hydraulic investigation of the cobble substrate reach of the Yampa River was conducted to determine the natural conditions and processes of the observed spawning habitat of the Colorado squawfish Ptychocheilus lucius. Recent studies conducted by the US Fish and Wildlife Service (USFWS) and the Colorado Division of Wildlife (CDOW) have concluded that the cobble substrate reach (River Mile 10 to 19) of the Yampa River in Dinosaur...
Author
Publisher
Colorado Department of Transportation, DTD Applied Research and Innovation Branch
Pub. Date
[2008]
Language
English
Description
In recent years, prestressed concrete bridges have dominated the bridge type selection processes in Colorado. This can be attributed to a lack of steel mills combined with a strong presence of precast fabricators in the region. In addition, a lack of readily available economical and innovative procedures to design and construct steel bridges has hindered the industry in certain areas such as Colorado. During this research it was identified that designing...
Author
Series
Completion report volume no. 129
Publisher
Colorado Water Resources Research Institute, Colorado State University
Pub. Date
[1983]
Language
English
Series
Information volume no. 69
Publisher
Colorado Water Resources Research Institute
Pub. Date
[1992?]
Language
English
Author
Series
Completion report volume no. 130
Publisher
Colorado Water Resources Research Institute, Colorado State University
Pub. Date
[1984]
Language
English
Author
Series
CER volume 85/86-17
Publisher
Colorado State University, Civil Engineering Department
Pub. Date
1985.
Language
English
Description
This study is a continuation of the work to determine the point of incipient failure and other hydraulic characteristics of riprap for providing criteria for design of stable ripraps in flood control channels. Two sizes riprap materials were tested. One material had a d = 1.0 in. and the other had a d₅₀ = 2.0 in. Both riprap sizes had the ETL 1110-2-120 gradation recommended by WES.
Author
Series
Completion report volume no. 123
Publisher
Colorado Water Resources Research Institute, Colorado State University
Pub. Date
[1983]
Language
English
Author
Series
Completion report volume no. 128
Publisher
Colorado Water Resources Research Institute, Colorado State University
Pub. Date
[1983]
Language
English
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