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A Program of FRC Theory Research Annual Report

Description: At the request of the Office of Fusion Energy, a group of experts was convened on February 6--8, 1990. This group met to assess the world data base on Reversed Field Pinch (RFP) physics, and, further, to assess the role of the ZTH experiment in providing reactor relevant physics understanding for that confinement geometry. This group met, analyzed some of the relevant literature, and heard extensive presentations on the physics of the RFP and the plans for the ZTH and RFX devices. The conclusio… more
Date: May 18, 1990
Creator: Krall, Nicholas A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of optical fluctuation diagnostics to transport studies in high temperature tokamak plasmas

Description: First data was obtained from the TFTR BES system in May 1990, after the prototype 4-channel system with photomultiplier detectors from PBX-M was transferred to the TFTR Hot Cell. The system was expanded to 16 spatial channels during the Summer 1990 run period, and data of interest was obtained near the end of the run in October 1990. The most attention has been given to a radial profile data set obtained for an L-mode plasma condition in TFTR, where we characterized the nature of the long-wavel… more
Date: January 1, 1991
Creator: Fonck, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytical model for a vertical buoyant jet

Description: An analytical model for a round and two-dimensional turbulent buoyant jet which is discharged vertically into a stagnant ambient is developed. The buoyant jet is considered to have three separate zone models which are matched to form a complete solution. The velocity field is determined for the entire jet and plume regions by the use of an eddy viscosity which varies along the axis of the jet. The centerline decay of buoyancy is determined throughout and the results are compared to existing num… more
Date: October 1, 1980
Creator: Lee, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies of Plasma Transport

Description: This report discusses the charge-coupled device camera and other plasma diagnostic equipment used to measure plasma density and other plasma properties. (LSP)
Date: July 22, 1991
Creator: Malmberg, J. H.; O'Neil, T. M. & Driscoll, C. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Particulate behavior in a controlled-profile pulverized coal-fired reactor: A study of coupled turbulent particle dispersion and thermal radiation transport

Description: This report describes recent progress in a fundamental, three-year investigation of the coupled problem of turbulent particle dispersion and thermal radiation transport. The project's objective is to make measurements of particle size, velocity, number density, temperature and wall radiant heat flux in a parametrically-controlled reactor presently existent at Brigham Young University (BYU). Although the study proposed here is primarily designed to provide experimental data not currently availab… more
Date: January 1, 1992
Creator: Queiroz, M. & Webb, B.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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HC quench layer formation in combustion processes. Technical progress report, September-December 1979

Description: The project is aimed at understanding wall quenching and other processes responsible for surface generated hydrocarbons in combustion under engine-like conditions. The study concerns the effects of turbulence on the evolution of hydrocarbons. At the conclusion of the program, significant new experimental information will have been generated and an analytical model of the fluid mechanics and some aspects of the chemistry of quenching will be formulated. The work is divided into three tasks: (1) … more
Date: February 1, 1980
Creator: Lavoie, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Revised Users Manual, Pulverized Coal Gasification or Combustion: 2-Dimensional (87-PCGC-2): Final Report, Volume 2. [87-PCGC-2]

Description: A two-dimensional, steady-state model for describing a variety of reactive and non-reactive flows, including pulverized coal combustion and gasification, is presented. Recent code revisions and additions are described. The model, referred to as 87-PCGC-2, is applicable to cylindrical axi-symmetric systems. Turbulence is accounted for in both the fluid mechanics equations and the combustion scheme. Radiation from gases, walls, and particles is taken into account using either a flux method or dis… more
Date: December 1, 1987
Creator: Smith, P. J.; Smoot, L. D. & Brewster, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flashing inception in flowing liquids

Description: The inception of net vaporization in flashing flows is examined. It is suggested that the flashing inception can be expressed as two additive effects. One is due to the static decompression which is a function of the initial temperature and also of the expansion rate. The other effect which is a function of Reynolds number and flashing index, is due to the turbulent fluctuations of the flowing liquid. It is shown that by taking a three standard deviation band on the turbulent velocity fluctuati… more
Date: April 1, 1980
Creator: Jones, O. C., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of particulate dispersion in a design-basis tornadic storm from the Atomics International Nuclear Material Development Facility, Santa Susana, California

Description: A three-dimensional numerical model is used to calculate ground-level air concentration and deposition (due to precipitation scavenging) after a hypothetical tornado strike at the Atomics International Nuclear Material Development Facility at Santa Susana, California. Plutonium particles less than 20 ..mu..m in diameter are assumed to be lifted into the tornadic storm cell by the vortex. The rotational characteristics of the tornadic storm are embedded within the larger mesoscale flow of the st… more
Date: July 1, 1980
Creator: Pepper, D.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Confinement scaling and ignition in tokamaks

Description: A drift wave turbulence model is used to compute the scaling and magnitude of central electron temperature and confinement time of tokamak plasmas. The results are in accord with experiment. Application to ignition experiments shows that high density (1 to 2) . 10/sup 15/ cm/sup -3/, high field, B/sub T/ > 10 T, but low temperature T approx. 6 keV constitute the optimum path to ignition.
Date: October 1, 1985
Creator: Perkins, F.W. & Sun, Y.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Maryland controlled fusion research program

Description: In this paper, we summarize the technical progress in four major areas of tokamak research: (a) L/H transition and edge turbulence and transport; (b) active control of microturbulence and transport; (c) major disruptions; and (d) the sawtooth crash.
Date: January 1, 1992
Creator: Griem, H. R. & Liu, C. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some atmospheric tracer experiments in complex terrain at LASL: experimental design and data. [Fluorescent particle tracer study]

Description: Two series of atmospheric tracer experiments were conducted in complex terrain situations in and around the Los Alamos Scientific Laboratory. Fluorescent particle tracers were used to investigate nighttime drainage flow in Los Alamos Canyon and daytime flow across the local canyon-mesa complex. This report describes the details of these experiments and presents a summary of the data collected. A subsequent report will discuss the analysis of these data.
Date: March 1, 1978
Creator: Archuleta, J.; Barr, S.; Clements, W.E.; Gedayloo, T. & Wilson, S.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Planetary-Wave Behavior and Arctic Air Pollution

Description: An attempt was made to relate episodes of air pollution at Barrow, Alaska, containing vanadium, to the behavior of planetary waves in middle and high latitudes. A stationarity index for planetary waves is defined as the ratio between amplitudes computed from monthly mean maps and the mean amplitudes computed on a daily basis and averaged over the same month, irrespective of phase angle. Longitude-time sections of 500-mb height anomalies at various latitudes are related to vanadium pollution epi… more
Date: January 1, 1979
Creator: Reiter, Elmar R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development and testing of an air quality model for Mexico City

Description: Los Alamos National Laboratory and Instituto Mexicano del Petroleo have embarked on a joint study of options for improving air quality in Mexico City. The intent is to develop a modeling system which can address the behavior of pollutants in the region so that option for improving Mexico City air quality can be properly evaluated. In February of 1991, the project conducted a field program which yielded a variety of data which is being used to evaluate and improve the models. Normally the worst … more
Date: March 2, 1992
Creator: Williams, M. D.; Streit, G. (Los Alamos National Lab., NM (United States)); Cruz, X.; Ruiz, M.; Sosa, G. (Instituto Mexicano de Petroleo, Mexico City (Mexico)); Russell, A. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Flow regimes

Description: Internal boundaries in multiphase flow greatly complicate fluid-dynamic and heat-transfer descriptions. Different flow regimes or topological configurations can have radically dissimilar interfacial and wall mass, momentum, and energy exchanges. To model the flow dynamics properly requires estimates of these rates. In this paper the common flow regimes for gas-liquid systems are defined and the techniques used to estimate the extent of a particular regime are described. Also, the current comput… more
Date: January 1, 1982
Creator: Liles, D.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Self-mixing phenomenology in hypothetical core-disruptive accidents

Description: Physical processes are investigated that lead to the thermal equilibration of a disrupted liquid metal fast breeder reactor (LMFBR) core following a hypothetical core-disruptive accident (HCDA). Their impact is assessed, particularly as relating to the SIMMER code. The turbulent structure in the core region is characterized and bounding estimates are derived of thermal equilibration (''self-mixing'') times. The implication of these results for LMFBR safety research is discussed briefly.
Date: December 1, 1980
Creator: Chapyak, E.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Transport inhibition due to flow-driven ion turbulence at the shock behind the critical surface

Description: Using a fine-zoned spherical hydrodynamic code, we examine the effects of reduced thermal conductivity at the ion acoustic shock behind the ponderomotive force-steepened profile. Narrow, high density peaks, and shock heated ions are found.
Date: January 1, 1980
Creator: Mayer, F. J.; Mitrovich, D.; Powers, L. V. & Speziale, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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HC quench layer formation in combustion processes. Technical progress report, January-April 1980

Description: The project is aimed at understanding wall quenching and other processes responsible for surface generated hydrocarbons in combustion under engine-like conditions. The study concerns the effects of turbulence on the evolution of hydrocarbons. At the conclusion of the program, significant new experimental information will have been generated and an analytical model of the fluid mechanics and some aspects of the chemistry of quenching will be formulated. The work is divided into three tasks: (1) … more
Date: June 1, 1980
Creator: Lavoie, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Resistive MHD stability studies for ATF plasmas during operation in the second stability regime

Description: Self stabilization effects were experimentally observed in the first period of operation of the ATF device. This effect is reproduced by the nonlinear calculations. 6 refs., 3 figs.
Date: January 1, 1989
Creator: Charlton, L. A.; Leboeuf, J. N.; Carreras, B. A.; Dominguez, N. & Lynch, V. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Security assessment of power systems including energy storage and with the integration of wind energy. Progress report, October 1, 1979-December 31, 1979

Description: Progress in wind energy studies is reported. During this quarter two areas were pursued: wind turbulence models and their effect on unsteady shaft torque of horizontal machines; and reduced order aerodynamic models of wind machines. (LCL)
Date: January 1, 1980
Creator: Carroll, D P & Krause, P C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Simulation of winds as seen by a rotating vertical axis wind turbine blade

Description: The objective of this report is to provide turbulent wind analyses relevant to the design and testing of Vertical Axis Wind Turbines (VAWT). A technique was developed for utilizing high-speed turbulence wind data from a line of seven anemometers at a single level to simulate the wind seen by a rotating VAWT blade. Twelve data cases, representing a range of wind speeds and stability classes, were selected from the large volume of data available from the Clayton, New Mexico, Vertical Plane Array … more
Date: February 1, 1984
Creator: George, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General Chemistry Division quarterly report, July--September 1977

Description: Analytical research and development work is reported on multielement analysis, time-resolved spectroscopy, fluorescence analysis, ionization potential of NP, excited state chemistry, polarized x ray sources, potentiometric titration of Na, determination of TATB in DMSO, determination of nitrobenzene in TATB, analysis of explosive composites, mass spectrometer automation, mass spectra calculation, solids formation in geothermal brine, water quality laboratory automation, aerosol coagulation, and… more
Date: November 30, 1977
Creator: Harrar, J.E. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sloshing of coolant in a seismically isolated reactor

Description: During a seismic event, the liquid coolant inside the reactor vessel will have sloshing motion which is a low-frequency phenomenon. In a reactor system incorporated with seismic isolation, the isolation frequency usually is also very low. There is concern on the potential amplification of sloshing motion of the liquid coolant. This study investigates the effects of seismic isolation on the sloshing of liquid coolant inside the reactor vessel of a liquid metal cooled reactor. Based on a syntheti… more
Date: January 1, 1988
Creator: Wu, Ting-shu; Gvildys, J. & Seidensticker, R.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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