Digital Commons Network^™

Effect Of Compliant Wall Motion On Turbulent Boundary Layers, Dennis M. Bushness, Jerry N. Hefner, Robert L. Ash

Mechanical & Aerospace Engineering Faculty Publications

A critical analysis of available compliant wall data which indicated drag reduction under turbulent boundary layers is presented. Detailed structural dynamic calculations suggest that the surfaces responded in a resonant, rather than a compliant, manner. Alternate explanations are given for drag reductions observed in two classes of experiments: (1) flexible pipe flows and (2) water-backed membranes in air. Analysis indicates that the wall motion for the remaining data is typified by short wavelengths in agreement with the requirements of a possible compliant wall drag reduction mechanism recently suggested by Langley. Copyright © 1977 American Institute of Physics.

Feeding Ecology Of Black Sea Bass Centropristis Striata On An Artificial Reef Off Virginia (Perciforms: Serranidae), Ping K. Chee

OES Theses and Dissertations

The feeding ecology of the black sea bass, Centropristis striata, associated with artificial reefs shows seasonal and size-related changes. Monthly collections totaling 520 black sea bass taken from an artificial reef near the Chesapeake Light Tower, Virginia, between August 1975 and May 1976, were analyzed for food habits as revealed by number, volume, frequency of occurrence and a modified Index of Relative Importance.

The black sea bass feeds on the artificial reef as well as the adjacent areas. When food was abundant on the reef, food items from the reef and the surrounding area were consumed. Upon depletion of the …

Troubadour, 1977, Old Dominion University

University Yearbooks

1977 yearbook of Old Dominion University

Freshman Register, 1977, Old Dominion University

University Yearbooks

1977 issue of the Freshman Register of Old Dominion University

The Food Habits Of Ictalurus Natalis, Centrarchus Macropterus And Perca Flavescens In Lake Drummond In The Dismal Swamp Of Virginia, Steven C. Russell

Biological Sciences Theses & Dissertations

The food habits of yellow bullhead catfish (Ictalurus natalis), yellow perch (Perea flavescens), and fliers (Centrarchus macropterus) in Lake Drummond in the Dismal Swamp were examined. Seventy yellow bullheads (42 mm to 255 mm), 136 yellow perch (41 mm to 280 mm), and 110 fliers (81 mm to 140 mm), were collected with gill nets, traps, seins, and electro-fishing gear from June through November of 1975. Frequency of occurrence and volumentric data were used to evaluate the relative importance of food items. Spearman's rank correlation coef­ficient was determined from the data to test differences …

James H. Burton And The Development Of The Confederate Small Arms Industry, Eugene K. Wilson Iii

History Theses & Dissertations

James H. Burton was a key figure in the development of the Confederate small arms industry. It was largely through his efforts that the C.S. Armory, Richmond was placed in operation as quickly as it was. The plan to establish a central, or national, armory in the deep South was attributable to him. Burton's European contacts, cultivated while organizing the Royal Armory at Enfield, professional acumen, personality and loyalty all contributed to a large degree to the success of the Confederate Ordnance Bureau despite seemingly insurmountable obstacles.

A Dynamic Test For Comparison Of Rebound Characteristics Of Three Brands Of Tennis Balls, Kenneth Talmadge Rand Jr.

Human Movement Studies & Special Education Theses & Dissertations

The purpose of this study was to compare Dunlop, Spalding and Wilson pressurized tennis balls for rebound when fatigued at trial intervals of 0, 800, 1,600, 2,400, 3,200 and 4,000 bounce impacts.

Eighteen yellow tennis balls, six each from Wilson, Dunlop and Spalding pressurized tennis cans were equally divided and randomly placed in a control or experimental group. The control group was not subjected to any fatigue. The experimental group was fatigued by use of a Lobster tennis ball firing machine. Both groups were filmed with a camera and strobe light assembly after each fatigue interval. The experiment was designed …

The Effects Of Dredging On The Stability Of An Ebb-Tidal Delta, Lynnhaven Inlet, Virginia, Donald Keith Riggenbach

OES Theses and Dissertations

A channel was dredged in 1965 through the ebb-tidal delta of Lynnhaven Inlet, Virginia. The purpose of this study was to determine if this channel has affected the morphological configuration of the delta. It was proposed that the channel caused the dynamically stable delta to become unstable and change its morphology.

Bathymetric comparisons of seven surveys during the last 122 years, including one conducted during this investigation, show that prior to 1962 and the dredging operations, the delta had become dynamically stable. The present survey shows that the delta has changed its shape in response to the interaction of the …

Evaluation Of Upwelling Infrared Radiance In A Nonhomogeneous Nonequilibrium Atmosphere, Sundaresa Venkata Subramanian

Mechanical & Aerospace Engineering Theses & Dissertations

The primary purpose of this study was to investigate the influence of vibrational nonequilibrium upon upwelling infrared radiance from the earth's atmosphere. Basic equations are presented for calculating the atmospheric transmittance, heating rates, and equilibrium and nonequilibrium upwelling radiances. By employing the Lorentz line-by-line model for spectral absorption, heating rates and upwelling radiances were calculated for equilibrium as well ·as nonequilibrium conditions in the spectral range of 4.6 μ CO and 3.3 μ 'CH₄ bands. For the spectral range of CO fundamental band, the influence of different 1~arameters on the upwelling radiance was also investigated. The results indicate that …

A Comparative Study Of A Salt Water Impoundment With Its Adjacent Tidal Creek Pertinent To Culture Of Crassostrea Virginica (Gmelin), William D. Anderson Iii

OES Theses and Dissertations

Certain physical, chemical and biological characteristics associated with the culture of subtidal Crassostrea virginica were assessed in a salt water impoundment and its adjacent tidal feeder creek. Large seed oysters (initial y = 57.3 mm) were transferred from a somewhat polluted estuary of Charleston Harbor to floating, mid-water, and bottom hardware cloth trays (200/tray) in a four hectare pond. Identical trays at comparable depths were placed in the tidal creek and each location was sampled monthly for growth and survival. Surface and bottom water samples were collected weekly throughout the study and hourly during four seasonal 25 hour stations. Standard …

The United States Great Britain And The Status Of Thailand (Siam), 1940-1946, Peter Goodwin

History Theses & Dissertations

This paper traces the changes in the attitudes and policies of the United States towards the Southeast Asian country of Thailand during the Second World War. From a position of indifference the United States assumed an active role in the emergence of Thailand as a sovereign nation at the conclusion of the war, encouraging pro-American factions and opposing a traditional power of the area, Great Britain.

The emphasis of the paper is on the different attitudes held by Britain and the United States and the efforts to reconcile them. The British expected recompense by the Thais for allying themselves with …

Stability And Local Effects Of An Offshore Sand Storage Mound, Dam Neck Disposal Site, Virginia Inner Continental Shelf, William Joslyn Saumsiegle

OES Theses and Dissertations

From 1967 to 1974 medium to coarse sand dredged from the Chesapeake Bay was stockpiled approximately three miles offshore of Dam Neck, Virginia in hopes that the sand could be recovered for local beach renourishment projects. The resulting mound was surveyed over a two year period to determine if the sand is being removed by wave and current action and if the creation of a new feature on the ocean bottom changes the wave refraction patterns and perhaps creates local erosion.

Bathymetric profiles across the storage mound show some apparent morphological changes, but a detailed analysis of this data is …

Similitude Of Mass Transfer Processes In Distorted Froude Model Of An Estuary, Carvel Hall Blair

Mechanical & Aerospace Engineering Theses & Dissertations

The project began with the design and construction of a hydraulic Froude model of the Lafayette River, a small well mixed estuary in Norfolk, Virginia. Horizontal scale is 1/540, vertical scale 1/12 yielding a vertical distortion of 45. Adjustment by roughness strips and screens produced close agreement of model-prototype tide heights, currents, and salinities in the deep reaches comprising 80% of the estuary volume. Some scale effect in velocity and tide height could not be eliminated in the shallow upper branches of the estuary, probably because of the high geometric distortion and the narrowness of the channel at kilometer 6.7. …

An Efficient Dft Algorithm Using The Walsh Transform, Albert P. Gerheim

Electrical & Computer Engineering Theses & Dissertations

The matrix transformation relating the sequency and frequency domains is derived. It is shown that these­ frequency-to-frequency conversion can be performed via a computationally efficient sparse matrix algorithm. The sequency-to-frequency algorithm can be used with a fast Hadamard transform to implement a discrete Fourier trans­ form. The efficiencies of this combined algorithm and a radix-two fast Fourier transform are compared.

The algorithm is applied to the sequency domain de­ sign of a Wiener digital filter. Improved computational efficiencies are achieved relative to the procedure de­veloped by Kahveci and Hall (9).

Vegetative Study At The Duck Field Research Facility, Duck, North Carolina, Gerald F. Levy

Biological Sciences Faculty Publications

The Duck Field Research Facility is located on the Outer Banks of North Carolina, a series of offshore sandbars extending from the Virginia- North Carolina border southward about 200 miles to Bogue Inlet, North Carolina. These bars lie almost parallel to the mainland and are separated from it by shallow sounds of varying widths.

The study area is included in Currituck Bank (North Bank), which extends from the Virginia-North Carolina boundary southward to the town of Nags Head, a distance of about 45 miles (Fig. 1). The bank was originally demarcated by two inlets; Old Currituck Inlet, which was located …

Dynamics And Sedimentology Of Inner Middle Ground - Nine Foot Shoal, Chesapeake Bay, Virginia, Mitchell Alan Granat

OES Theses and Dissertations

The historical, hydrodynamic, and sedimentological development of Inner Middle Ground - Nine Foot Shoal indicates that it is presently in quasi-equilibrium with mutually evasive ebb and flood tidal currents. Bathymetric comparisons among six surveys taken during the past 122 years depict development of the shoal from two linear sand bodies to its present double parabolic morphology. Circulation paths are proposed for each survey.

Information from eight current meter stations on and adjacent to Inner Middle Ground - Nine Foot Shoal were used to determine near-surface and near-bottom tidal current asymmetries and directions. The concepts of bathymetrically diverted currents and mutual …

A Numerical Model For The Prediction Of Tides And Tidal Currents In The Lafayette River, Norfolk, Virginia, G. Mcallister Sisson

OES Theses and Dissertations

A prediction technique for tidal heights and currents in the Lafayette River of Norfolk, Virginia has been formulated and tested by the implementation of a two-dimensional numerical model employing the Navier-Stokes momentum equations and conservation of mass. The model operates on a spatially-fixed rectangular grid system by utilizing a multi-operation finite difference scheme which employs implicit and explicit solutions to the aforementioned equations. Forces due to bottom friction and Coriolis are taken into account. The only open boundary considered in the model is the river mouth, across which tidal height is specified temporally. Collected tidal height and current data at …

Improved Techniques For Marking, Night-Viewing, And Aging White-Tailed Deer, Odocoileus Virginianus, Barnard Hodge Powell

Biological Sciences Theses & Dissertations

These studies were concerned with the development of methods to assist investigators of wildlife population research. Specifically they involve the description of (1) A device which enables an investigator to mark deer at medium range using specially modified darts fired by conventional tranquilizer rifles, (2) Construction of infrared viewers and light sources using surplus equipment and (3) Studies to develop a method of making permanent deer dental impressions under field conditions.

A Curriculum Guide For Windmills, Bentley R. Harrell

OTS Master's Level Projects & Papers

No abstract provided.

Identify Competencies For Teachers Of The "World Of Transportation" In Industrial Arts, James Alexander Roth

OTS Master's Level Projects & Papers

It is the purpose of this study to determine and list the competencies needed by teachers of "World of Transportation" for evaluation by those concerned.

The Vocational Selections Of Industrial Arts Graduates Of The School Of Education Old Dominion University, Willis H. Alexander

OTS Master's Level Projects & Papers

No abstract provided.

Methane Distribution And Production In The Georgia Salt Marsh, Larry P. Atkinson, John R. Hall

CCPO Publications

Bacterial action in the anaerobic sediments of Spartina salt marsh produce large quantities of methane. Water in contact with the marsh has methane concentrations 200-300 times normal oceanic concentrations. The methane content of the water varies from maximum of 1.2 mu l CH sub(4)/ super(l) super(-1) in the summer to a minimum of 0.005 mu l CHl1

Freshman Register, 1976, Old Dominion University

University Yearbooks

1976 issue of the Freshman Register of Old Dominion University

Troubadour, 1976, Old Dominion University

University Yearbooks

1976 yearbook of Old Dominion University

An Engineering Solution To Improve Water Quality In A Tidal Lagoon, Richard Warren Price

Civil & Environmental Engineering Theses & Dissertations

Rising demand for better water quality stimulated research and development of ways to improve the quality level in existing as well as proposed water systems. At present, most of the solutions focus on biological and chemical processes.

Many natural or man-made water bodies act as receivers for both point and non-point pollution sources. Employment of biological and chemical treatment has proved successful in many of these cases; however, in some cases a more natural physical solution of an engineering mode would be more desirable. A "flushing" technique using the tidal fluctuation as a driving force has been investigated and the …

The Synthesis Of New Maleimide Addition Polymer Precursors, Richard B. Brown

Chemistry & Biochemistry Theses & Dissertations

1H-2,3-dimethylpyrrolo(1,2-a) benzimidazol-l-one (27) and 1H,9H- 2,3,7,8-tetramethyl-bispyrrolo(1,2-a:6,7-a')benzodiimidazo1-1,9-dione (32) have been synthesized from dimethylmaleic anhydride and o-phenylenediamine and 1,2,4,5-tetraaminobenzene, respectively. The presence of reactive olefinic double bonds in the synthesized compounds was of interest as a site for possible addition polymerization.

The synthetic route involved, in both cases, a simple nucleophilic substitution reaction between the diamine(or tetraamine) and the anhydride to form an intermediate amide-acid-amine which rapidly cyclized to the imide amine. The final ring closure required more rigorous conditions and occurred at melt reaction temperatures.

Urbanization And Environmental Change In Lynnhaven Estuary, Don W. Oswalt

OES Theses and Dissertations

The very minimal amounts of available urbanization data demonstrate that the number of residential dwellings in the Lynnhaven drainage basin increased sharply in the late 1950’s and early 1960's, and that the 1970 basin population density value of 1981 people per square mile is larger than all the burrough density values, except for the Virginia Beach burrough. Due to a lack of data, only qualitative changes in Lynnhaven’s marine environment can be noted. There is a strong suggestion of an increase in amounts of urban storm water run-off into Lynnhaven since 1937. A considerable amount of siltation has occurred since …

The Elements Of Mathematics Program: How Can It Be Evaluated?, Marilou Shames Giacofci

STEMPS Theses & Dissertations

The Central Midwest Educational Research's (CEMREL) Elements of Mathematics Program (EM) for gifted students was piloted in Tidewater for five years. Before deciding whether to continue or expand the program, it was necessary to devise a method of evaluating the program's effectiveness. In the process of this evaluation, two separate com­parisons were made:

- a lateral comparison between an experimental and an existing control class over a period of four years, and

- a longitudinal comparison of successive experimental classes over a four year period.

Lateral Study

To insure comparability between the experimental and control classes, both were administered the …

Imre Nagy And The First Phase Of The Hungarian Revolution, William B. Liverman

History Theses & Dissertations

This thesis is an analysis of the relationship between the national communists and "Moscow emigres" in the government of Hungary, between the Hungarian government and that of the Soviet Union, and between the Hungarian government and the various insurgent groups in Budapest and the Hungarian provinces immediately preceding and during the Hungarian Revolution of 1956. An attempt is made to evaluate the effect of each of these forces on the course of revolution and its final outcome. The study is based on traditional sources and on interviews with leading figures involved in the revolution.

A Method For Improving The Accuracy In Phase Change Heat Transfer Data Through Increased Precision In Thermophysical Property Determinations, John Philip Drummond

Mechanical & Aerospace Engineering Theses & Dissertations

Wind tunnel model materials typically have thermophysical properties that vary with both position and temperature. A numerical study using a finite difference representation of the heat conduction equation has been performed on several of these model materials to determine their thermal response under a specified heat loading. This study has confirmed the feasibility of using an effective thermophysical property to account for the existence of variable thermal properties when a model undergoes aero­ dynamic heating. The effective property, when used in the reduction of phase-change heat transfer data, forced agreement of the actual transient behavior of a model with the …