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  • Simulation of microturbulence in a tokamak fusion device

Plasma Turbulence Simulations Reveal Promising Insight for Fusion Energy

With the potential to provide clean, safe, and abundant energy, nuclear fusion has been called the “holy grail” of energy production. But harnessing energy from fusion, the process that powers the sun, has proven to be an extremely difficult challenge.

Scientists have been working to accomplish efficient, self-sustaining fusion reactions for decades, and significant research and development efforts continue in several countries today.

For one such effort, researchers from the Princeton Plasma Physics Laboratory (PPPL), a DOE collaborative national center for fusion and plasma research in New Jersey, are running large-scale simulations at the Argonne Leadership Computing Facility (ALCF) to shed light on the complex physics of fusion energy. Their most recent simulations on Mira, the ALCF’s 10-petaflops Blue Gene/Q supercomputer, revealed that turbulent losses in the plasma are not as large as previously estimated.

March 31, 2014
  • Longitudinal form factor and transverse sum rule

Carbon-12 Simulations Help Enhance Particle Physics Experiments

Using ALCF supercomputers to study the carbon-12 nucleus at an unprecedented level of detail, researchers are uncovering results that will help improve the understanding of subatomic particles.

With an Early Science Program (ESP) project at the Argonne Leadership Computing Facility (ALCF), researchers from Argonne, Los Alamos, and Jefferson national laboratories used Mira, the ALCF’s 10-petaflops IBM Blue Gene/Q supercomputer, to make reliable fundamental calculations of neutrino and electron reactions with carbon-12 nuclei.

Led by Argonne senior physicist Steven Pieper, the research team performed the most detailed simulations of the structure of the carbon nucleus to date, with their calculations of carbon-12’s charge form factor and sum rules of the electromagnetic response function.

 

March 05, 2014
  • Argonne's Introduce a Girl to Engineering Day

ALCF Staff Help Introduce Girls to Science and Engineering

On Feb. 20, Argonne National Laboratory hosted its 14th annual Introduce a Girl to Engineering Day to give eighth-grade girls an opportunity to learn about science, technology, engineering, and mathematics (STEM) careers.

Several ALCF staff members volunteered to assist with the event, including Emily Shemon and Lisa Childers, who served as mentors.

March 03, 2014
  • Corrosion

The Core of Corrosion

Anyone who has ever owned a car in a snowy town – or a boat in a salty sea – can tell you just how expensive corrosion can be. One of the world’s most common and costly chemical reactions, corrosion happens frequently at the boundaries between water and metal surfaces. In the past, the process of corrosion has mostly been studied from the metal side of the equation.

However, in a new study, scientists at the Center for Nanoscale Materials at the U.S. Department of Energy’s Argonne National Laboratory investigated the problem from the other side, looking at the dynamics of water containing dissolved ions located in the regions near a metal surface.

February 17, 2014
  • Intrepid, the ALCF's Blue Gene/P supercomputer

Passing the Torch from Intrepid to Mira

Much like personal computers, the average lifespan of a supercomputer is four to five years. In 2013, Intrepid, the Argonne Leadership Computing Facility’s (ALCF) IBM Blue Gene/P supercomputer, hit the five-year mark, ending an impressive run of innovative computational research.

Ranked as the third fastest computer in the world when it debuted in 2008, Intrepid enabled researchers to accelerate studies of everything from advanced battery materials and climate models to supernovae and Parkinson’s disease. The 557-teraflops system was decommissioned on Dec. 31, 2013, but its legacy lives on in many of the ALCF’s ongoing research projects.

February 03, 2014
  • Patrick Dreher and Mladen Vouk

Researchers Describe Project to Merge Cloud Computing and Supercomputing

Using a Director’s Discretionary allocation at the Argonne Leadership Computing Facility (ALCF), researchers from North Carolina State University recently completed a project that successfully merged a cloud computing environment with a supercomputer. Here, project leads Patrick Dreher and Mladen Vouk discuss their work at the ALCF.

January 27, 2014
  • Theory and Computing Sciences building at Argonne

ALCF and MCS Establish Joint Lab for Evaluating Computing Platforms

To centralize research activities aimed at evaluating future high performance computing platforms, a new joint laboratory at Argonne will provide significant opportunities for the Argonne Leadership Computing Facility (ALCF) and the Mathematics and Computer Science (MCS), both located in the Theory and Computing Sciences building, to work collaboratively on prototype technologies for petascale and beyond.

January 08, 2014
  • large-scale ensemble simulations targeted at identifying key effects in the formation of defect states, which can then be eliminated or exploited

A Wrong Molecular Turn Leads Down the Path to Type 2 Diabetes

Computing resources at the U.S. Department of Energy's (DOE) Argonne National Laboratory have helped researchers better grasp how proteins misfold to create the tissue-damaging structures that lead to type 2 diabetes.

January 06, 2014
  • GLEAN - strong scaling performance

GLEANing Scientific Insights More Quickly

Researchers at the Argonne Leadership Computing Facility (ALCF) are developing a software tool, called GLEAN, to help users optimize data movement between the compute, analysis, and storage resources of high-performance computing systems. This speeds the computer’s ability to read and write data, also known as input/output (I/O) performance, giving researchers a faster path to scientific insights.

December 17, 2013
  • Direct Numerical Simulation of Autoignition in a Jet in a Cross-Flow

ALCF Research Aimed at Safer, Cleaner Combustion for Gas Turbines

Researchers from the Swiss Federal Institute of Technology (ETHZ) and the Argonne Leadership Computing Facility (ALCF) are using supercomputers to advance the development of safer and cleaner gas turbine engines by studying the operating conditions that can lead to a potentially dangerous phenomenon called autoignition.

December 03, 2013

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