Technical Report Archive & Image Library (TRAIL) - 37 Matching Results

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Tube Vibration in Industrial Size Test Heat Exchanger (22 Additional Configurations)

Description: Typical industrial shell-and-tube heat exchanger configurations are investigated systematically for the occurrence of potentially damaging tube vibration as a function of flow-rate. In continuation of an ongoing experimental program, results from shell-side water flow tests of twenty-two additional test exchanger configurations are reported. The test cases include single- and double-segmentally baffled tube bundles having various combinations of triangular and square tube layout patterns, baffl… more
Date: December 1985
Creator: Halle, Henry; Chenoweth, James M. & Wambsganss, M. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Comparison of the CRAY X-MP-4, Fujitsu VP-200, and Hitachi S-810/20 : an Argonne Perspective

Description: A set of programs, gathered from major Argonne computer users, was run on the current generation of supercomputers: the CRAY X-MP-4, Fujitsu VP-200, and Hitachi S-810/20. The results show that a single processor of a CRAY X-MP-4 is a consistently strong performer over a wide range of problems. The Fujitsu and Hitachi excel on highly vectorized programs and offer an attractive opportunity to sites with IBM-compatible computers.
Date: October 1985
Creator: Dongarra, J. J. & Hinds, Alan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Overview of the Characteristics of the 6-GeV Synchrotron Radiation : a Preliminary Guide for Users

Description: In this document we present the characteristics of the electromagnetic radiation from various types of sources on a 6-GeV storage ring. The sources include bending magnets, undulators and wigglers. The characteristics are compared with those of other synchrotron sources when operated at their design specifications. The influence of positron beam size on the brilliance is discussed, along with the power distribution from these sources. The goal of this document is to provide users with enough in… more
Date: October 1985
Creator: Shenoy, G. K. & Viccaro, P. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quasi-Automatic Parallelization : a Simplified Approach to Multiprocessing

Description: As multiprocessors become commercially available, a great deal of concern is being focused on the problems involved in writing and debugging software for such machines. Earlier work described the use of monitors implemented by macro processors to attain portable code. This work formulates a general-purpose monitor which simplifies the programming of a wide class of numeric algorithms. We believe that the approach of describing a set of schedulable units of computation advocated by Brown offers … more
Date: October 1985
Creator: Glickfeld, B. W. & Overbeek, Ross A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Three-Dimensional Thermal Modeling of Electric Vehicle Batteries

Description: A generic three-dimensional thermal model was developed for analyzing the thermal behavior of electric-vehicle batteries. The model calculates temperature distribution and excursion of a battery during discharge, change, and open circuit. The model takes into account the effects of heat generation, internal conduction and convection, and external heat dissipation on the temperature distribution in a battery. The three-dimensional feature of the model permits incorporation of various asymmetric … more
Date: October 1985
Creator: Lee, Johnsee; Choi, K. W.; Yao, N. P. & Christianson, C. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extraction and Recovery of Plutonium and Americium from Nitric Acid Waste Solutions by the TRUEX Process : Continuing Development Studies

Description: This report summarizes the work done to date on the application of the TRUEX solvent extraction process for removing and separately recovering plutonium and americium from a nitric acid waste solution containing these elements, uranium, and a complement of inert metal ions. This simulated waste stream is typical of a raffinate from a tributyl phosphate (TBP)-based solvent extraction process for removing uranium and plutonium from dissolved plutonium-containing metallurgical scrap. The TRUEX pro… more
Date: September 1985
Creator: Leonard, R. A.; Vandegrift, G. F.; Kalina, D. G.; Fischer, D. F.; Bane, R. W.; Burris, L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fluid Excitation Forces Acting on a Tube Array

Description: Fluid forces are important in the assessment of vibration of the Space Shuttle Main Engine liquid oxygen posts. This report summarizes the available data on fluid excitation forces acting on tube arrays in turbulent crossflow, and test results for an array of tubes subject to turbulent flow. The fluctuating drag and lift forces are measured as a function of Reynolds number, incoming flow conditions, and tube location in an array.
Date: September 1985
Creator: Chen, Shoei-Sheng & Jendrzejczyk, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

General Theory for Dynamic Instability of the SSME LOX Posts

Description: A general theory of fluid-elastic instability for a tube array in crossflow is presented for application to the space shuttle main engine liquid oxygen (SSME LOX) posts. Various techniques to obtain the motion-dependent fluid-force coefficients are discussed and the general instability characteristics are summarized. The theory is also used to evaluate the results of other mathematical models for crossflow-induced instability.
Date: September 1985
Creator: Chen, Shoei-Sheng
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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In-Cell Reaction Rate Distributions and Cell-Average Reaction Rates in Fast Critical Assemblies

Description: Measurements are described for determining average values of fission rates in uranium-235, uranium-238 and plutonium-239 and capture rates in uranium-238 for heterogeneous cells used to construct fast critical assemblies. The measurements are based on irradiations of foils of uranium-238, uranium-235 and plutonium-239 with counting of fission and capture products using gamma-ray spectroscopy. Both plate and pin cells are considered. Procedures are described for inferring cell-average reaction r… more
Date: August 1985
Creator: Brumbach, S. B. & Gasidlo, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Leakage Flow-Induced Vibration of an Eccentric Tube-in-Tube Slip Joint

Description: Eccentricity of a specific slip-joint design separating two cantilevered, telescoping tubes did not create any self-excited lateral vibrations that had not been observed previously for a concentric slip joint. In fact, the eccentricity made instabilities less likely to occur, but only marginally. Most important, design rules previously established to avoid instabilities for the concentric slip joint remain valid for the eccentric slip joint.
Date: August 1985
Creator: Mulcahy, T. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Optical Spectra and Electronic Structure of Actinide Ions in Compounds and in Solution

Description: This report provides a summary of theoretical and experimental studies of actinide spectra in condensed phases. Much of the work was accomplished at Argonne National Laboratory, but references to related investigations by others are included. Spectroscopic studies of the trivlent actinides are emphasized, as is the use of energy level parameters, evaluated from experimental data, to investigate systematic trends in electronic structure and other properties. Some reference is made to correlation… more
Date: August 1985
Creator: Carnall, W. T. & Crosswhite, H. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research Summary 1984-1985

Description: Report on research in carcinogenesis, human radiobiology, low-level radiation, molecular biology, and toxicology.
Date: August 1985
Creator: Argonne National Laboratory. Division of Biological and Medical Research.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of Axial-Leakage Simulations for Homogeneous and Heterogeneous EBR-II Core Configurations

Description: When calculations of flux are done in less than three dimensions, leakage-absorption cross sections are normally used to model leakages (flows) in the dimensions for which the flux is not calculated. Since the neutron flux is axially dependent, the leakages, and hence the leakage-absorption cross sections, are also axially dependent. Therefore, to obtain axial flux profiles (or reaction rates) for individual subassemblies, an XY-geometry calculation delineating each subassembly has to be done a… more
Date: August 1985
Creator: Grimm, K. N. & Meneghetti, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Humic Substances in Natural Waters and Their Complexation With Trace Metals and Radionuclides : A Review

Description: Section I introduces the material contained in the rest of the report. Section II presents the origin and characteristics of humic materials as we understand them today and outlines the methods that have been used to separate and analyze these substances. Section III focuses on the general problem of metal-organic interactions and treats some of the factors that are important in chelating and complexing of metal ions by humic substances. Section IV deals specifically with the complexing o… more
Date: July 1985
Creator: Boggs, Sam, Jr.; Livermore, David & Seitz, Martin G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Li-Alloy/FeS Cell Design and Analysis Report

Description: This report contains historical information on the Li-alloy/FeS system that will be useful in its future applications. This document includes the following: (1) the chemical and electrochemical reactions for the Li-alloy/FeS system, accomplishments in past cell development efforts, and performance attained by state-of-the-art cells vs performance goals; (2) detailed drawings of state-of-the-art cell designs, documentation of cell fabrication techniques, and comparisons of alternative types of c… more
Date: July 1985
Creator: Gay, E. C.; Steunenberg, Robert K.; Miller, W. E.; Battles, J. E.; Kaun, T. D.; Martino, F. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Fuel Cell Development Progress Report: July-September 1984

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes studies directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells.
Date: June 1985
Creator: Ackerman, J. P.; Pierce, Robert Dean; Nelson, P. A. & Arons, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flow-Induced Vibration of Circular Cylindrical Structures

Description: This report summarizes the flow-induced vibration of circular cylinders in quiescent fluid, axial flow, and crossflow, and applications of the analytical methods and experimental data in design evaluation of various system components consisting of circular cylinders.
Date: June 1985
Creator: Chen, Shoei-Sheng
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fluid Forces on Two Circular Cylinders in Crossflow

Description: Fluid excitation forces are measured in a water loop for two circular cylinders arranged in tandem and normal to flow. The Strouhal number and fluctuating drag and lift coefficients for both cylinders are presented for various spacings and incoming flow conditions. Results show the effects of Reynolds number, pitch ratio, and upstream turbulence on the fluid excitation forces.
Date: June 1985
Creator: Jendrzejczyk, J. A. & Chen, Shoei-Sheng
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tutorial on the Warren Abstract Machine for Computational Logic

Description: Tutorial description of the Warren machine with a basic introduction to the motivation of the machine and the instructions that define it. Discussion of the fairly limited extensions required to extend the machine for more general use outside of implementations of logic programming. Substantial speedups will occur due to improvements in the implementation of the basic algorithms.
Date: June 1985
Creator: Gabriel, John R.; Lindholm, Tim; Lusk, E. L. & Overbeek, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of Monitors in FORTRAN: a Tutorial on the Barrier, Self-Scheduling DO-Loop, and Askfor Monitors

Description: A set of macro libraries has been developed that allows programmers to write portable FORTRAN code for multiprocessors. This document presents, in tutorial form, the macros used to implement three common synchronization patterns: self-scheduling DO-loops, barrier synchronization, and the askfor monitor.
Date: June 1985
Creator: Lusk, Ewing L. & Overbeek, Ross A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heat Exchanger Vibration Analysis (HXVA) for Prediction of Tube Bundle Instabilities

Description: Pre and postprocessors have been written for an established hydraulic program (COMMIX-IHX) which enables prediction of the internal crossflow field for each tube of Argonne's Test Heat Exchanger and identification of those tubes most likely to experience fluid-elastic instability, together with the instability vibration mode. While the direct use of the HXVA method is limited to single pass, single-segmentally baffled tube bundle configurations, its algorithms and methods can be applied to any … more
Date: May 1985
Creator: Mulcahy, T. M.; Wambsganss, M. W. & Yang, C. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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