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Subcritical Flow Over Various Weir Shapes, M. Leon Hyatt, Gaylord V. Skogerboe, Lloyd H. Austin

Reports

Submerged flow exists for any given structure when a change in flow depth downstream from the structure causes a change in flow depth upstream from the structure for any given constant value of discharge. The two flow depths, normally measured when submerged flow exists, consist of a depth upstream from the structure, which is used also for free flow conditions, and a depth of flow located any place downstream from the structure. The initial studies in which the submerged flow analysis was developed were made on flat-bottomed flumes (Hyatt, 1965; and Skogerboe, Walker, and Robinson, 1965). Later studies verified the …

Evaluation Of Free And Submerged Flow Data For Large Parshall Flumes, M. Leon Hyatt, Gaylord V. Skogerboe

Reports

Because the accurate measurement of water plays such an important part in water management, such structures as weirs, orifices, calibrated gates f and flumes have been developed. These structures provide the means for reasonable measurement of the smaller flows (1: .. 100 cfs), but for the large flows (100-3,000 cfs) the current meter, large Parshall flume, and various other flumes are commonly used. Where a permanent structure is required, the most widely accepted and utilized method for measurement of large flows is probably the Parshall flume. The purpose of this report has been to collect the existing flow data for …

Application Of Electronic Analog Computer To Solution Of Hydrologic And River Basin Planning Problems: Utah Simulation Model Ii, J. Paul Riley, Duane G. Chadwick, Jay M. Bagley

Reports

As demands upon available water supplies increase, there is an accompanying increase in the need to assess the downstream hydrologic system. At Utah State University this problem is being approached by electronic analog simulation of the hydrologic system. Modeling concepts are based upon the development of basic relationships which describe the various hydrologic processes. Within a system, these relationships are linked by the continuity -of-mass principle which requires a hydrologic balance at all points. Once established, the model is applied to any particular geographic unit by determining the appropriate constants of the hydrologic equations. The analog computer is ideally suited …

Proceedings Of A Summer Institute In Water Resources: Volume 1 - Philosophical, Institutional, And Legal Aspects Of Water Resources, Cleve H. Milligan, Charles E. Corker, Wayne D. Criddle

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

Estimating Evaporation And Evapotranspiration From Climatic Data, Jerald Emmet Christiansen

Reports

No abstract provided.

Mathematical Hydraulics Of Surface Irrigation, Cheng-Lung Chen

Reports

The general hydrodynamic equations for a spatially varied unsteady flow in a prismatic open channel having an arbitrary cross-sectional shape can be derived from the equations of continuity and momentum. The assumptions based on the general concept of hydrodynamics and the theory of shallow water is introduced. The mathematical models in the surface irrigation can be formulated by these equations of motion with the appropriate initial and boundary conditions prescribed at the singularity point (the origin in the x, t-plane) and at x = 0. Therefore, the flow in the surface irrigation must be described by solving the boundary-value problem …

Hydrologic Instrumentation And Telemetering, Duane G. Chadwick

Reports

The following report discusses the various phases of work carried out by the Utah State University under a cooperative agreement contract with the Soil Conservation Service for the period extending from June 1965 to June1966.

The body of the report discusses instrumentation techniques employed for the remote telemetering of total precipitation and water content of snow. Discussion of performance of a new type pressure pillow is also given for measuring the water content of snow. Data taken during system evaluation is presented in the Appendix.

Numerical Solution Of Water Hammer Analysis Including Friction Losses, Lih Hsun Weng

Masters Theses

"The water hammer phenomena is a very important problem in pipe lines and gate operations. There are many analytical solutions tor water hammer problems including friction losses, but most of them use a linear approximation tor the friction effect that is different from the actual situation. Also the existing methods for solving water hammer problems involve difficult mathematical operations that are impractical and inaccurate.

In order to find a more rapid method for solving water hammer problems including friction losses and to obtain closer agreement with the actual condition, the problem is solved here using the basic partial differential equations …

A Study Of Sedimentation In A Well Regulated Major Drainage Basin - The Monongehala, Allegheny And Upper Ohio Rivers, William S. Wood

Masters Theses

"This investigation is concerned with the study of various programs employed in reducing and controlling sediment. The measures employed by the U.S. Soil Conservation and Forestry Services to control and reduce erosion, the primary source of sediment, was studied. The flood control and river navigation structures constructed and operated by the U.S. Army Corps of Engineers and the effect of these structures on sedimentation was also evaluated. State and local community regulation and control of exploited natural resources was studied to determine their influence on the generation and control of sediment.
The Allegheny, Monongehala and upper Ohio River Drainage Basin …

A Numerical Method For The Solution Of Cylindrical Shell Structures, Chen-Jow Hsiao

Masters Theses

"Many studies and analyses of shell structures to date have been either so complex and laborious as to preclude their application in practical design problems or so approximate, because of basic assumptions, as to limit their scope of application. Hence, a method of shell analysis which is convenient to use, reasonable in its results and general in its application is really needed. It is the purpose of this study to supply such a method of analysis.

In this investigation it is proposed to replace the shell structure which has an infinite number of degrees of indeterminancy with an analogous framework …

The Shrinkage Characteristics Of Plastic Clay, Edward De Santis

Masters Theses

"This investigation was conducted to determine the shrinkage properties of a clay soil whose structure had been artificially altered in the laboratory. Various percentages of dispersing and flocculating agent were added to the soil and the shrinkage curves plotted.

The shrinkage curves of the chemically treated soil were compared with those of the untreated soil. The values of the theoretical and observed shrinkage limits were also compared to determine the validity of the standard shrinkage limit test which, at present, does not take into consideration the structure of the soil.

An explanation of the differences in the shrinkage characteristics of …

The Application Of Digital Computers To Highway Location Analysis, John A. Dearinger, Thomas E. Morgan

Kentucky's Annual Forum on Transportation

No abstract provided.

The Performance Of Beams And Columns Continuously Braced With Diaphragms - I, Gordon P. Fisher, S. J. Errera

CCFSS Library (1939 - present)

When properly attached, shear-rigid light-gage metal diaphragms, such as roof decking or wall sheathing, can be very effective as lateral bracing for slender columns and beams. At present, limited design use is made of this fact, because of inadequate information on the effectiveness and reliability of such bracing. In this thesis, previous theory on the stability of Isection beams and columns braced with shear-rigid diaphragms has been extended. Two energy methods are used, one employing the Euler-Lagrange conditions from the calculus of variations, and the other the Rayleigh-Ritz method. The problem initially considered is that of an I-section beam-column eccentrically …

The Irish Plumbing And Heating Engineer, October 1965 (Complete Issue)

Building Services Engineering

No abstract provided.

The Irish Plumbing And Heating Engineer, September 1965 (Complete Issue)

Building Services Engineering

No abstract provided.

Evaluation Of Chemical Composition And Particle Size Gradation Of Evaporation-Reducing, Monolayer-Forming Materials, Vaughn E. Hansen, Gaylord V. Skogerboe

Reports

Initial field testing began shortly after the arrival of materials in August, 1964. The field experiments were designed to evaluate the effects of the long-chain alcohol C20 and particle size gradation on the effectiveness of evaporation retardants when applied by aerial techniques. The materials which were tested at Utah Lake are listed below.

Graphical Solutions To Frequently Encountered Fluid Flow Problems, Roland W. Jeppson

Reports

Introduction

Graphical methods are often used by engineers to solve frequently used or complex formulas which require trial and error solutions. Perhaps the best known graphical tool used by the engineer is the slide rule, but anyone familiar with its use will recognize its limitations both in time and accuracy. For many problems which involve many repetitive computations high speed digital or analog computers are the most effective tools for solution. There are, however, many problems requiring considerable engineering time for slide rule solutions where solutions are not justifiable on computers. The use of nomograms for such problems is desirable. …

The Influence Of Exchangeable Ions And Their Concentration In The Pore Fluid On Plastic And Strength Properties Of Cohesive Soil, Mahmoud H. Abd-El-Aziz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was conducted to find out both the effect of different exchangeable cations and the concentration of ions in the soil pore fluid on strength and plastic properties of a sample of cohesive soil taken from the bank of an open drain ditch at the Utah State University Irrigation and Drainage Farm.

The experimental results of this study may be summarized by the following points:

1. A general decrease of liquid limit and an increase in both shear strength and modulus of elasticity, with increasing salt concentration in the pore fluid, were observed for all samples, with the exception of …

Flume Study Of The Effect Of Concentration And Size Of Roughness Elements On Flow In High-Gradient Natural Channels, Mohamed Wafaie Abdelsalam

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In recent years investigators have given increased attention to flow in natural, high-gradient, rough, open channels. Studies include work in both the laboratory and in the field. Solutions to the problem are still incomplete; however, continued attention by investigators is needed to answer many questions. Using a laboratory flume, the writer studied one of the questions concerning the relative importance of gross velocity fluctuations versus turbulent mixing, and the ranges of each under different ranges of submergence and kineticity of flow. In the different ranges, the effect of size and concentration of the roughness elements was studied.

Construction, Instrumentation, And Preliminary Verification Of A Physical Hydrologic Model, Donald L. Chery Jr.

Reports

From theoretical consideration involving a rationalized dimensional analysis of the rainfall-runoff phenomena, dimensionless products of the pertinent variables are derived. These dimensionless products guided the design and construction of a rainstorm simulator and topographic model. The design and construction of these two basic elements of the physical hydrologic model are described. A description of the instrumentation and several relevant calibration tests is followed by a discussion of two preliminary verification test sets. The tests indicated that some necessary refinements in equipment and instrumentation were needed before more precise experimental data could be obtained. Further, the tests produced results which encouraged …

Buckling Strength Of Titanium Alloy Columns In The Elastic And Inelastic Range, Richard O. Rintoul

Masters Theses

"The purpose of this study is to find experimentally the buckling strength of titanium alloy (Ti.-6Al.-4V.) columns and to determine a suitable equation to be used in the design of titanium columns in the elastic and inelastic range.

Effective length over radius of gyration ratios of from 178 to 16.1 were studied. High strength steel plates with cylindrical radii milled in the faces served as column ends while cylindrical radii ends were milled on the columns. SR-4 strain gages were used at the mid-points of all columns to determine lateral deflection and predict a theoretical buckling stress. Actual column loads …

Lot Feeding Of Beef Cattle. 3. Facilities Required For A Feed Lot, W J O Wilkie

Journal of the Department of Agriculture, Western Australia, Series 4

MANY THINGS must be considered in planning a feed lot.

The site must be well chosen, fencing, gates and yards must be adequate for the cattle carried and feeding and watering facilities should be of a high standard.

Other things to consider are the provision of shelter and shade for the cattle and buildings for feed storage and other purposes.

Procedural Guide For Estimating Axle Loadings On A Statewide Basis, Roy Hilton Larson

JTRP Technical Reports

No abstract provided.

A Study Of The Mechanism Of Fatigue In Cement Paste And Plain Concrete, John Decourey Antrim

JTRP Technical Reports

No abstract provided.

Traffic Assignment By Systems Analysis, Wallice Alvin Mclaughlin

JTRP Technical Reports

No abstract provided.

An Analysis Of Travel Speed And Delay On A High-Volume Highway, Theodore B. Treadway

JTRP Technical Reports

No abstract provided.

A Synthesis Of Urban Travel Patterns In Metropolitan Lafayette, Indiana, Stephen W. Ricks

JTRP Technical Reports

No abstract provided.

Evaluation Of Safety At Railroad Highway Grade Crossings, Thomas Gordon Schultz

JTRP Technical Reports

No abstract provided.

Comparison Of Different Methods Of Measuring Pavement Conditions : Technical Paper, Eldon J. Yoder, Robert T. Milhous

JTRP Technical Reports

No abstract provided.

Evaluation Of Safety At Railroad Highway Grade Crossing, Thomas Gordon Schultz

JTRP Technical Reports

No abstract provided.