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2 edition of Reaeration in a turbulent stream system found in the catalog.

Reaeration in a turbulent stream system

George G. Ice

Reaeration in a turbulent stream system

by George G. Ice

  • 53 Want to read
  • 16 Currently reading

Published by Oregon State University, Water Resources Research Institute in Corvallis, Or .
Written in English

    Subjects:
  • Rivers -- Aeration -- Mathematical models.

  • Edition Notes

    Statementby George G. Ice and George W. Brown.
    SeriesWRRI -- 58., WRRI (Series) -- 58.
    ContributionsBrown, George W.
    The Physical Object
    Pagination96 p. :
    Number of Pages96
    ID Numbers
    Open LibraryOL14205926M

    To evaluate the effects of free-stream turbulence on turbulent boundary layers, a flat plate was positioned in a wind tunnel and a set of rods was positioned upstream of the plate to generate free-stream turbulence. detailed description of the system and instrumentation follows. A All experiments were performed in the Cal Poly draw-thru wind Missing: Reaeration. Efficient Control System for Low-Concentration Inorganic Gases from a Process Vent Stream: Application of Surfactants in Spray and Packed Columns. Environmental Science & Technology , 38 (21), DOI: /esw. Romain Lemoine,, Arsam Behkish, and, Badie I. Morsi.

    D. Liu**, X. Liu $, X. Fu. () LES-DEM simulations of sediment saltation in a rough-wall turbulent boundary layer, Journal of Hydraulic Research, 57(6): M. Talebpour* and X. Liu $. () Numerical investigation on the suitability of a fourth-order nonlinear k-omega model for secondary current of second type in open-channels. Free-Stream Turbulence effects on the Turbulent Boundary Layer. Introduction In attempts to calculate boundary layers on turbomachine blades the external free-stream conditions become important. In the past, flow downstream of moving blade rows has been thought of as a highly.

    Tracer measurement of reaeration, III: Predicting reaeration capacity of inland streams, Journal of the Water Pollution Control Federation. Wanninkhof, R., P.J. Mulholland, and J.W. Elwood, , Gas exchange rates for a first -order stream determined with deliberate and natural tracers. Water Resources Research. 26 (7): PROCEEDINGS of a SYMPOSIUM on DIRECT TRACER MEASUREMENT OF THE REAERATION CAPACITY OF STREAMS AND ESTUARIES July , COSPONSORS Environmental Protection Agency and The Georgia Institute of Technology School of Civil Engineering SYMPOSIUM ARRANGEMENT Ernest C. Tsivoglou, Principal Investigator, GIT Mark A. McClanahan, Associate .


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Reaeration in a turbulent stream system by George G. Ice Download PDF EPUB FB2

Get this from a library. Reaeration in a turbulent stream system. [George G Ice; George Wallace Brown; Oregon State University. Department of Forest Engineering.; Oregon State University. Water Resources Research Institute.].

A natural process counteracting oxygen depletion is reaeration. Reaeration is the exchange of gases between the atmosphere and water.

This process operates to maintain oxygen near the saturation concentration. The change in the oxygen deficit in a stream is a function of the existing deficit and the reaeration rate by: 7.

This project was supported by funds provided by the United States Department of the Interior, Office of Water Research and Technology, as authorized under the Water Resources Research Act of Cited by: 7. Graduation date: The oxygen concentration in a stream is an important\ud parameter of water quality.

Changes in oxygen concentrations\ud can affect various stream organisms including fish.\ud Foresters have become concerned with predicting the impacts\ud of forest activities on oxygen levels in streams.

Reaeration in a turbulent stream system. Abstract. This project was supported by funds provided by the United States Department of the Interior, Office of Water Research and Technology, as authorized under the Water Resources Research Act of Publisher: Corvallis, Or.: Oregon State University, Water Resources Research Institute.

Part of the Ecological Studies book series (ECOLSTUD Reaeration in a Turbulent Stream System. Ph.D. Thesis. Oregon State Univ., Corvallis, OR. Ice G.G. () Stream Temperature and Dissolved Oxygen.

In: Stednick J.D. (eds) Hydrological and Biological Responses to Forest Practices. Ecological Studies, vol Statistical analysis of reaeration rate in streams and per day which puts the river in the sluggish stream category and as a heavily polluted stream.

is estimated from turbulent. Reaeration in combined wind/stream driven flows was studied experimen-tally in a laboratory wind-water tunnel. Wind velocities, stream flow prop-erties and oxygen transfer rates were measured. Chapter 3 - Reaeration. CHAPTER 3 REAERATION by M.J. Gromiec INTRODUCTION Reaeration, the process of oxygen absorption from the atmosphere by a body of water, is one of the main sources of oxygen in aquatic systems.

The reaeration process in an aquatic system is characterized by its surface reaeration coefficient. PURPOSES OF THIS RESEARCH The gaseous tracer procedure for field observation of stream reaeration capacity now provides the necessary tool for char- acterizing stream reaeration capacity in terms of the hy- draulic properties associated with turbulence, and, hence, for solving the practical problem of predicting reaeration from field measurements of the relevant stream hydraulic properties„ Although the tracer method permits highly accurate field eval- uation of reaeration capacity.

REAERATION IN A TURBULENT STREAM SYSTEM INTRODUCTION The harvesting and removal of timber provides an impor-tant economic base to the Pacific Northwest. These same silvicultural activities can endanger water quality by modifying associated forest stream ecosystems.

In the Pacific Northwest, small forest streams are often valuable. A water quality model for self-purification of small streams has been modified and applied for the waste assimilative capacity determination of a shallow turbulent stream. The verification of the model, using the data of two water quality surveys, demonstrated that the model can be successfully applied (excluding the effect of photosynthesis).

Stream water depth, ft (L) K 2. Reaeration coefficient, day −1 (t −1) K 2f. Reaeration coefficient of fresh water at 20 °C(t −1) K 2s. Reaeration coefficient of saline water at 20 °C (t −1) K L. Physical mass-transfer coefficient (L/t) P. Mass density of fluid, lb/ft 3 (M/L 3) p.

Atmospheric pressure, mm Hg. P s. Saturated steam. Reaeration coefficients were determined for 20 different subreaches in the study area. Reaeration coefficients ranged from per day in a pooled subreach of the Yampa River near Craig, Colorado, to 98 per day in a turbulent subreach of Trout Creek near Oak Creek, Colorado.

Manuscript approved for publication Octo INTRODUCTION. This item: Turbulent Mirror: An Illustrated Guide to Chaos Theory and the Science of Wholeness by John Briggs Paperback $ Only 1 left in stock - order soon. Ships from and sold by s:   To study reaeration rates in small turbulent streams in the late s, George Ice artificially depleted oxygen levels in several small forest streams including Needle Branch and Deer Creek by injecting the streams with sodium sulfite.

Sodium sulfite is rapidly oxidized (consuming oxygen) to sodium sulfate in the presence of a catalyst. Ports in a Storm considers the monumental challenge of driving rapid change in a complex system involving hundreds of private organizations and scores of government agencies with their operations intricately intertwined.

The book examines Englebert's actions from varied conceptual vantage points, sometimes critiquing questionable calls but more Reviews: 1. BOD and Oxygen Relationship in Streams by William E.

Dobbins, Serial Information: Journal of the Sanitary Engineering Division,Vol. 90, Issue 3, Pg. Document Type: Journal Paper Abstract: The equations of Streeter and Phelps for the BOD and dissolved-oxygen profiles along a natural stream are extended to take into account the effects of longitudinal dispersion, removal of BOD by.

Many previous tidal river and estuary studies emphasized mainly the effects of flow conditions (such as velocity, water depth, turbulent intensity, hydraulic gradient, etc.) and temperature on stream aeration, and the effect of salts was not seriously considered.

[1] Laboratory experiments were conducted to investigate the effect of fluid motion on the growth and metabolism of the freshwater periphyton Spirogyra and only growth‐limiting factor was the effect of fluid motion; all the other environmental conditions, such as light, temperature, and nutrients were not limiting growth.

Then an introduction into turbulent combustion is given in Lecture Premixed turbulent combustion is presented in terms of the regime diagram in Lect the level set approach and the turbulent burning velocity is presented in Lectures 12 while non-premixed turbulent combustion is treated in Lecture Finally, in Lecture.Reaeration in Open-Channel Flow By J.

P. BENNETT and R. E. RATHBUN GEOLOGICAL SURVEY PROFESSIONAL PAPER An evaluation of procedures for measuring and predicting the reaeration coefficient of open-channel flows UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: .2a stream that shoots nine-tenths of the whole volume of water inside a inch-diameter circle and three-fourths of its volume into a inch-diameter circle at its break-over point.