Flow Resistance in Wide Rectangular Channels
Friction coefficients are determined for rectangular channels over a wide range of Reynolds number and a range of width-to-depth ratios of 35 to 1. Comparison with other investigators...

Exact Involute Bodies of Revolution
Involute construction is an approach used in contemporary rocket nozzle technology for the fabrication of exit cones and other bodies of revolution and consists of laminating identical...

TVA Hydro Scheduling Model: Practical Aspects
Computer programs and mathematical methods have been developed to model long term week-to-week variations in water level, discharge and electrical generation for the 42 reservoirs operated...

Method for Analysis for Guyed Towers
A method for static analysis of guyed towers is extended and applied to problems in three dimensions. The tower and guy cables may be loaded by arbitrary distributed or concentrated forces,...

Pump-Sump Design Experience: Summary
The designs of pump sumps for seven different projects, as developed through hydraulic model testing, are compared with published design standards. Modifications to the sump designs, in...

Cooling Tower Practice in Germany: State of the Art
A rapid development in design and construction of natural draught cooling towers has taken place in Germany. Research has been concentrated on theory and analysis of shells, on acting...

Full-Scale Tests on Ground Anchors in Fine Sand
A series of ground anchors of varying lengths were installed in a medium dense sand, with a veiw to study as many as possible of the variables influencing anchor behaviour and load transfer....

Fatigue Reliability: Introduction
A four-part state of the art summary on fatigue reliability is presented by the ASCE Committee on Fatigue and Fracture Reliability. This first part reviews fatigue models commonly used...

Equivalent Hydraulic Pipe for Parallel Pipes
Methods are defined for reducing two or more parallel pipes to a single hydraulically equivalent pipe for analysis using the Darcy-Weisbach equation that allows the friction factor to...

Flood Probability Estimation
A procedure is developed for estimating design floods in situations where data are insufficient for a conventional frequency analysis. It involves the use of a compound distribution which...

Uncertainty Analysis of Dissolved Oxygen Model
First-order uncertainty analysis was applied to 258 stream segments to determine the relative contributions to scatter, or uncertainty, in dissolved oxygen predictions by each of the parameters...

Computer Analysis of Settling Test Data
A method of fitting a simple approximating function to quiescent settling test data is given that can serve for either discrete or flocculant settling. The method can be used with the...

Wind Pressures on Low Buildings with Parapets
The effect of parapets on the wind loading of low-rise buildings has been examined in the past, primarily under conditions of uniform flow not representing the variation of the mean speed...

Forest Service Timber Bridge Specifications
Approximately one half of the 12,000 Forest Service road and trail bridges are constructed of wood or have wood as a major component. The number constructed each year fluctuates with the...

Multiport Diffusers for Heat Disposal: A Summary
This paper reviews the fluid mechanical characteristics - as derived from theoretical and experimental studies during the past dozen years - of submerged multiport diffusers used for heat...

Elastic Creep Bending Analysis of Plates
The finite element method is used to solve the nonlinear problem of creep bending of a plate. The initial strain approach has been adapted to solve the resulting nonlinear simultaneous...

Determination of Particulate-Nutrient Availability
A procedure for direct contact algal assay is described which provides quantitative data on phosphorus transfer from soil to algae in serial 14-day incubations. The algae/soil/liquid phases...

Construction of Offshore Platforms
The size and weight of offshore platforms have increased steadily as the search for oil and gas moves into deeper water and more hostile environments. This growth is portrayed in terms...

Realistic Tolerances for Double-Tee Construction
This paper is mainly concerned with the problems of tolerance specification for precast concrete construction. Some articles have reported that constructed tolerances are much larger than...

Maintaining Tidal Inlet Channel by Fluidization
Along the barrier islands off the east coast of the U.S. and at other areas of the world, there exist many tidal inlet channels which connect the ocean to back bay areas. An innovative...

 

 

 

 

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