Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “LANL”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,783 records · Page 99
All sourcesNASA NTRSDOE OSTI
DOE OSTI2013

Transforming How Climate System Models are Used: A Global, Multi-Resolution Approach to Regional Ocean Modeling

We review the results obtained under grant support. Details are given in the publications listed at the end of the review. We also provide lists of the personnel funded by the grant and of other collaborators on grant-related research and of the talks delivered, also under grant related research. We collaborated closely with geophysicists at the Los Alamos National Laboratory and the National Center for Atmospheric Research; especially noteworthy is our collaboration with Todd Ringler of LANL who was an active partner on much of our work.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2013

Plasma Paradigm Shift Document for the CoCoMANS Project

This is a dynamic document in the Computational Co-design of Multi-scale Applications in the Natural Sciences (CoCoMANS) LANL LDRD DR project. As of the current date we are approximately half way through this three year project and we have made significant prototype-app and mini-app progress in our plasma application. We are progressing towards developing compact-app software and using this software to demonstrate a paradigm shift in computational plasma physics via an evolving computational co-design process.

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2013

Demolition Notification for Quarter Ending June 30, 2013

The National Nuclear Security Administration (NNSA) and Los Alamos National Security, LLC (LANS) (collectively the Permittees) are submitting notice of demolition activities for the quarter ending June 30,2013, in accordance with Permit Section 1.17.2 of the Los Alamos National Laboratory (LANL) Hazardous Waste Facility Permit (Permit), to the New Mexico Environment Department Hazardous Waste Bureau (NMED-HWB).

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2013

Materials Selection for the Lead-Bismuth Corrosion and Erosion Tests in DELTA Loop

This report documents the selection of materials participating in the currently ongoing corrosion/erosion tests in LANL Development of Lead-Alloy Technology and Applications (DELTA) loop, a facility designed to study the long-term corrosive effects of liquid lead-bismuth eutectic (LBE) on structural materials for high temperature applications in advanced reactors, accelerator-driven systems and spallation sources. In this suite of experiments, LBE temperature in the DELTA loop test section is 500°C. Oxygen sensors are used to maintain an LBE Oxygen concentration of 1x10 -6 to 1x10 -8 wt%. Unique to the experimental conditions is the LBE high flow-rate of 3-3.5 m/s in the test section. Results obtained in these corrosion tests represent a substantial extension from existing experimental data currently limited to LBE velocities of maximum ~2 m/s.

36 MATERIALS SCIENCE↗
DOE OSTI2013

Review of Data from Shock Physics Experiments SPE-1, SPE-2 and SPE-3: Data Corrections and Phenomenology Analysis

The NNSA is conducting a series of high explosive (HE) tests – the Source Physics Experiments – at the National Nuclear Security Site (NNSS). These experiments are intended to investigate the generation of geophysical signals from controlled sources. These signals will aid in the development of physics-based models to aid in the discrimination of signals emitted from these and other possible sources, such as earthquakes and clandestine nuclear events. The SPE events include an array of accelerometers near to the source intended to provide measurements of the strong ground motion, or “near field,” regime. LANL performed an extensive review of the near field measurements from the first two events (SPE-1 and SPE-2) in this series. This review revealed that the near field gauges likely rotated during installation, causing measurement uncertainty. 2 This conclusion led to the installation of new gauges for the third experiment, SPE-3, utilizing new physical design and improved installation practices to achieve better quality control on their orientation. A subsequent analysis of SPE-3 data confirmed that rotations occurred and provided the basis for corrections to those data where the amount of rotation could be credibly determined. The corrected data supports a more confident analysis of the entire near field data set. This report summarizes the data errors and provides results of the analysis of the corrected dataset.

42 ENGINEERING↗
DOE OSTI2013

Yearly Report for the Period Jan-Dec 2012: IC PROJECT W12c_earthuq - “High-Performance Computing for Uncertainty Quantification of 3D Earth Models”

This proposal was written to be a new project leveraging on computational achievements of the two IC11 proposals “3D Geophysical Modeling Validation” and “Time-Reversal Imaging of tremor sources”. W12c_earthuq involves additional codes/tools other than SPECFEM3D for data processing and planned a strong effort to move toward modeling at much larger scales than the aforementioned projects. W12c_earthuq goal was to use extensive HPC resources at LANL to assess the uncertainty of high resolution 3D geophysical models. Validation of these models as planned in W11_geophys is the first step in a full assessment of uncertainty. So, the scientific and programmatic impacts of this project are the same as W11_geophys. The main effort related to w12c_earthuq is the preparation to transition to large runs with a resolution down to 2s. We already report the work done in the report for w11_geophys. Such resolution requires meshes with 10 billions elements with a size of about 5km and a few thousands of compute nodes. First tests on mustang have revealed that the I/O part of the code need to be reviewed because it opens too many files in its current version.

58 GEOSCIENCES↗
DOE OSTI2013

Safety-Class Uninterruptable Power Supply Integrator for the TA-55 TRP II Project: REQUEST FOR QUALIFICATION No. ADPM-001 - PREQUALIFICATION CRITERIA

LANS is seeking to establish qualified suppliers for the detailed design and installation of a Safety-Class, Class 1E Uninterruptable Power Supply (UPS) system in accordance with ASME NQA-1 2008 and 2009 addenda and IEEE Std. 344, respectively. This scope includes all activities from detailed design of the UPS through procurement, installation, post installation testing, and dedication (as required) at Technical Area (TA)-55. Design, procurement, installation and testing of all safety-related components must be in accordance with NQA-1 and must be purchased from qualified suppliers that have an NQA-1 program or through Commercial Grade Dedication (CGD) in accordance with NQA-1 a-2009, Subpart 2.14. The SUBCONTRACTOR shall plan, schedule, coordinate, test, inspect and assure effective performance of all aspects of the UPS system as described herein. LANL intends to issue a separate RFP (excluding work specified herein) for work to be performed by a General Contractor supporting the UPS Project including procurement and installation of the new UPS building, pre-stressed concrete, structural steel, HVAC, fire protection, site utilities, and other ancillary equipment and components required for the facility.

42 ENGINEERING↗
DOE OSTI2013

Multigroup Radiation Transport in Supernova Light Curve Calculations

The supernova associated with long duration gamma0ray bursts are always found to be Type Ic supernova (SN). Type Ic SN are observed to have extremely small amounts of He in their spectra. Astrophysicists have been exploring ways to either hide the He in the observations or eject the He prior to the SN. Recent calculations by Patrick Young using new mixing algorithms suggest that many massive stars may burn the He layer to O during its evolution and therefore naturally account for the lack of He in the spectra of the SN. The LANL supernova light curve codes are being used to generate simulated observations of these new models.

79 ASTRONOMY AND ASTROPHYSICS↗
DOE OSTI2013

Source Physics Experiment modeling: YEARLY REPORT FOR THE PERIOD Jan-Dec 2012

The Office of Nuclear Detonation Detection identifies characterization of the explosion source as a fundamental research area. Our ability to characterize explosion sources from earthquakes relies on empirical laws that are not covering all the possible cases of location, site structure and yields of possible explosions. Our empirical knowledge needs to be completed by a physical understanding of seismic wave generation. NA22 has funded the LANL SPE seismic project to develop a new source model under the Ground-Based Nuclear Explosion Monitoring Research and Development (GNEM-R&D) Program. NA22 also funds computational support of the seismic source model development. Hydrodynamic computations using realistic material response models combined with a comprehensive series of field experiments provided by the SPE program are needed for test and validation of the new seismic source models. The following three essential elements, (1) model development, (2) numerical simulations of non-linear material response, and (2) field experimentation, will be brought to bear on a predictive capability for broadband P and S wavefields with a sound physical basis for seismic monitoring applications. This research will advance our ability to address yield estimation for UNE conducted in proliferant nations and provide a better understanding of the coupling of explosion sources to the seismic wavefield.

58 GEOSCIENCES↗
DOE OSTI2013

Performance Improvement Strategy FY14-18: Create Our Future Strengthen the Core

This document presents the Los Alamos National Laboratory (LANL) Multiyear Strategy for Performance Improvement for FY14–FY18 in accordance with Clause H-3 Contractor Multiyear Strategy for Performance Improvement of the National Nuclear Security Administration (NNSA) Contract No. DE-AC52-06NA25396. “The Contractor shall develop a multiyear strategy that details (1) its planned efforts and expected accomplishments by year, to continuously improve its management and performance at the Laboratory, and (2) the planned efforts and contributions of its Parent Organization. “The multiyear strategy shall also address planned efforts to (1) enhance Contractor communications, cooperation and integration with the NNSA Weapons Complex, with emphasis on Lawrence Livermore National Laboratory; and, (2) contribute to overall NNSA Weapons Complex improvements in performance. The listing of the Contractor’s planned efforts and expected accomplishments from its offer in response to Solicitation No. DE-RP52-05NA25396 for FY2006 (June 1, 2006 – September 30, 2006, partial year) and FY2007 shall be addressed in the initial multiyear strategy. Subsequent annual updates shall be submitted to the Contracting Officer no later than May 15th of each year. Performance measures for these planned efforts and expected accomplishments may be considered for inclusion in the Contract’s Performance Evaluation Plan.”

99 GENERAL AND MISCELLANEOUS↗
DOE OSTI2013

Report on Sustainability Program Peer Reviews at NNSA Laboratories

In FY 2012 peer reviews were conducted at three of the National Nuclear Security Administration (NNSA) Laboratories on the implementation of sustainability programs to achieve the DOE Strategic Sustainability Performance Plan goals. The three Laboratories selected include Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratory (SNL). These reviews were initiated by the LANS/LLNS Board of Governors Business & Operations Committee and were joined by Sandia National Laboratories to get a broad understanding of the challenges and successes experienced at the three Labs. Each review used a common approach and process for inquiry. The peer review process provided a beneficial benchmarking opportunity for each of the Laboratories. The purpose of this report summary is to bring together the mutual challenges faced across the three NNSA national labs to deepen the conversations between the sites and NNSA as the customer to work constructively toward achieving progress on the sustainability goals. The team identified many noteworthy practices and common challenges faced at each of the three sites. At each site the review team also saw a strong connection between the Environmental Management System (EMS) and the implementation of the site’s sustainability program. One common challenge was that in spite of the linkage to the EMS program the implementation efforts to achieve the sustainability goals were perceived as being the sole responsibility of the facilities and infrastructure management organizations vice an expectation for strong employee engagement. Another common challenge was perceived within the procurement organizations and demonstrated effort toward meeting the sustainable acquisition requirements throughout the organization and the various contract instruments used at each site.

29 ENERGY PLANNING, POLICY, AND ECONOMY↗
DOE OSTI2013

RELIC 1.0: Rare Earth Level and Intensity Calculations User Guide

Thank you for your interest in RELIC, and welcome to the RELIC user community. RELIC was developed at Los Alamos National Laboratory (LANL) with the goal of providing a user-friendly and self-consistent tool that can be offered under a free license. RELIC stands for “Rare Earth Level and Intensity Calculations”. It is a software package that performs calculations of [Xe] 4 f N wavefunctions and energy levels of the tripositive rare earth ions (from Pr 3+ to Tm 3+ ) as well as electronic transition intensities between them. In addition, RELIC offers a number of basic quantum mechanical functions, and it calculates several derived quantities that are relevant for the optical spectroscopy of rare earths.

36 MATERIALS SCIENCE↗
DOE OSTI2013

Institutional Computing Annual Report - W11_Friction

The IC W11_Friction program has as a goal the fundamental understanding of the physical mechanisms which determine the macroscopic frictional force between ductile metals for arbitrary compressions and relative velocities. The high performance computing platforms have allowed detailed understanding of physical mechanisms: elasticity, anharmonicity of phonons, plastic deformation, phase transitions and melting, and grain structure including grain growth and refinement. The method used has been Non Equilibrium Molecular Dynamics (NEMD) using the SPaSM parallel code developed at LANL. The results of these simulations have resulted in a scaling model for the metal-metal frictional force.

36 MATERIALS SCIENCE↗
DOE OSTI2013

Experimental Investigations -- Midyear Status Report

This report summarizes technical work conducted by LANL staff and international collaborators in support of the UFD Storage Experimentation effort. The current focus of this technical work is two-fold: 1) on the stainless steel (304L) failure mechanism known as stress corrosion cracking (SCC), and 2) on the concrete integrity under degradation conditions (e.g., thermal, radiation, alkali-aggregate reactions). As these issues are common among our international partners, a significant effort has been put forth to engage foreign programs in a mutually beneficial collaborative program on these topics. Results from these collaborations, notably with Japan, France and Switzerland, are highlighted.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗
DOE OSTI2013

Review of Metrics Calculations Proposed by Lawrence Livermore National Laboratory

A multilaboratory effort to create metrics to describe the state of Surveillance programs was started several years ago. Two versions of metrics have been developed to date-one supported by Los Alamos National Laboratory (LANL) and Sandia National Laboratories (SNL) and the other developed and supported at Lawrence Livermore National Laboratory (LLNL). This paper reviews the LLNL metric calculation methodology and compares it with the LANLlSNL methodology.

42 ENGINEERING↗
DOE OSTI2013

Hot Coordinate Measuring Machine Technology Assessment (U)

The goal of this report is to document a technology assessment performed following the guidance created by LA-UR-13-22870, “Hot Coordinate Measuring Machine Technical Specifications and Requirements (U)”. The intent was to capture specific values for technical specifications and requirements listed by the guide and assign a weight factors based on TA-55 importance. After the information was obtained, an optimal coordinate measuring machine for TA-55 was revealed – Hexagon’s Leitz Reference Xi 15.9.7. An internal look at on-site technology revealed that the current Hot CMM (Xcel 765) has the worst performance specification or accuracy statement of all CMMs currently at LANL. A look at Quindos license file options revealed that while most machines appear to have a standard set of options, some machines appear to be missing options and may contain unneeded ones. Controller firmware versions also appear to not be standardized at this time.

42 ENGINEERING↗
DOE OSTI2013

SLAC National Accelerator Laboratory FACET & TEST BEAM FACILITIES PROPOSAL: Development of Electron Radiography for Material Science

The material science community is presently limited by diagnostics in both the fabrication of materials and measuring the resulting materials characteristics of these new fabrication techniques. Because of this limitation the community is forced into an empirical mode of material fabrication, where expert judgment is used to guide manufacturing processes and the resulting materials are inspected and tested for the desired characteristics. This development approach can be time consuming and costly. The solution to this problem is to improve our fundamental understanding of materials, which requires the development of new diagnostics capable of measurement at the micron length scale, during both processing and during testing. These new measurements will enable a fundamental understanding of material characteristics allowing the development of predictive models, which will in turn enable material engineering by design rather than today’s empirical approach. Solving this problem has become a grand challenge for the materials science community. Los Alamos plans to address this challenge through the development of new diagnostics capable of measurements at the smallest length scales through the Multi-Probe Diagnostic Hall (MPDH) at the planned MaRIE (Material and Radiation In Extremes) Facility. One of the probes will be a coherent photon beam generated by an FEL driven by a multi-GeV electron beam. The photons will be used for diffraction measurements as well as radiography of relatively thin samples (nearly single grains). The same multi-GeV electron beam can be used to directly radiograph thicker systems (many grains or “bulk” material), providing high resolution measurements of the density distribution of materials during both fabrication and dynamic testing. This technique, electron radiography or eRad, that has been identified by LANL as one of the probes required to meet this grand challenge has never been demonstrated with high energy electrons. We propose to begin development of this technique with the electron beam available at FACET.

47 OTHER INSTRUMENTATION↗
DOE OSTI2013

Elementary Particle Physics and High Energy Phenomena: Final Report for FY2010-13

The work under this grant consists of experimental, theoretical, and phenomenological research on the fundamental properties of high energy subnuclear particles. The work is conducted at the University of Colorado, the European Organization for Nuclear Research (CERN), the Japan Proton Accelerator Research Complex (J-PARC), Fermi National Accelerator Laboratory (FNAL), SLAC National Accelerator Laboratory (SLAC), Los Alamos National Laboratory (LANL), and other facilities, employing neutrino-beam experiments, test beams of various particles, and proton-proton collider experiments. It emphasizes mass generation and symmetry-breaking, neutrino oscillations, bottom particle production and decay, detector development, supergravity, supersymmetry, superstrings, quantum chromodynamics, nonequilibrium statistical mechanics, cosmology, phase transitions, lattice gauge theory, and anomaly-free theories. The goals are to improve our understanding of the basic building blocks of matter and their interactions. Data from the Large Hadron Collider at CERN have revealed new interactions responsible for particle mass, and perhaps will lead to a more unified picture of the forces among elementary material constituents. To this end our research includes searches for manifestations of theories such as supersymmetry and new gauge bosons, as well as the production and decay of heavy-flavored quarks. Our current work at J-PARC, and future work at new facilities currently under conceptual design, investigate the specifics of how the neutrinos change flavor. The research is integrated with the training of students at all university levels, benefiting both the manpower and intellectual base for future technologies.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗