Award Data

There is a fundamental need for a high-performance computing (HPC) approach to computational electromagnetics (CEM) modeling tools suitable for designing and optimizing the next generation photonics devices- The dramatic grown of telecommunications bandwidth requirements is fueling demand for advanced manufacturing methods of next-generation devices capable of incorporating new phenomena such as p ...

The recent events at the Fukushima nuclear power plant highlight the need for enhanced accident tolerance. Of particular concern is the overheating of standard zirconium alloy cladding in a loss of coolant accident (LOCA). One of the leading candidates for future claddings is a silicon carbide (SiC) composite. However, it is clear that due to the inherent brittle nature of ceramics and the intrins ...

Neutron scattering is one of the most useful methods of studying the structure and dynamics of matter. These methods require large installations at national laboratories, such as Oak Ridge National Laboratory (ORNL), National Institute of Standards and Technology (NIST) and other facilities constructed or planned in the US and around the world. These facilities serve a large and diverse community ...

Accelerators are necessary for the fundamental study of matter and its origins. A critical component of accelerators are the niobium superconducting radio frequency (SRF) cavities, which are used to accelerate the particles. Because of the significant number of niobium SRF cavities required for each accelerator, innovative manufacturing techniques are needed to reduce fabrication costs and to ensu ...

To make a viable tokamak reactor concept, efficient, robust steady state current drive is required. RF power is among the leading contenders due to its high efficiency and penetration to the plasma core without density limits. To minimize impact on tritium breeding, high power density RF antennas are desired. At present, electrical breakdown limits the power density to ~10 MW/m2. Recent results at ...

TECHNICAL ABSTRACT: CFDRC proposes the creation of an innovative location-based threat tracking and notification system to allow users to receive hazardous weather messages from the NWS with their call to action, allow users to receive custom-tailored messages about threats, and visualize relevant weather information within their area. The focus is on a tool that allows this information to be comm ...

With the 4 billion tons of uranium estimated to be dissolved in the earth & apos;s oceans, an essentially unlimited resource is available to those with easy and affordable access. With decades of research towards the extraction of uranium from seawater, focus has been directed towards the selectivity of the adsorbent material, the cost of the material, and the ability of the adsorbent to be recycl ...

Computer simulations of multi-phase flows are important for many applications. In the proposed work, we plan to advance Eulerian-Lagrangian methods by using Adaptive Mesh Refinement for multi-scale resolutions, and CPU-GPU parallelization to drastically reduce computing time. Eulerian-Lagrangian methods treat the gas/liquid phase as a continuum (Eulerian) fluid, and solid particulates as discrete ...

Tungsten and its alloys are candidates for plasma facing component heat sinks and armor due to their low sputtering rate, high melting point, high thermal conductivity, high strength at elevated temperatures and low tritium inventory. However during service, the plasma facing components will be exposed to a high flux of 14MeV neutrons from the plasma and low energy neutrons from the blanket, whic ...