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Familiar crowd patterns emerged from the new simulations: people walking on an on-coming collision course veer well in advance, but people traveling in the same direction tend to walk close together. Courtesy of Yoshikazu Takada

Predicting Human Crowds with Statistical Physics

March 3, 2015 10:36 am | by American Physical Society | News | Comments

For the first time, researchers have directly measured a general law of how pedestrians interact in a crowd. This law can be used to create realistic crowds in virtual reality games and to make public spaces safer. People intuitively know how to navigate through crowds in a way that both minimizes distance traveled and avoids collisions. But the 'force' that governs human interactions has been previously unknown.

Combatting the World’s Deadliest Ebola Outbreak

March 2, 2015 4:37 pm | by Suzanne Tracy, Editor-in-Chief, Scientific Computing and HPC Source | Blogs | Comments

The U.S. Centers for Disease Control and Prevention (CDC) reports that the 2014 Ebola epidemic...

Statistical Mechanics Reveal Ideal Hideout to Save your Brains from the Undead

March 2, 2015 2:26 pm | by American Physical Society | News | Comments

Researchers focusing on a fictional zombie outbreak as an approach to disease modeling suggest...

Developing Simulation Software to Combat Humanity’s Biggest Issues

February 25, 2015 12:36 pm | by Queen’s University Belfast | News | Comments

Researchers are creating ground-breaking computer software, which has the potential to develop...

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Tsunami impact map provides more precise estimates of the areas that might face tsunami-induced flooding.

Study Maps Major Tsunami Impact on Columbia River

February 24, 2015 12:19 pm | by Oregon State University | News | Comments

Engineers at Oregon State University have completed one of the most precise evaluations yet done about the impact of a major tsunami event on the Columbia River, what forces are most important in controlling water flow and what areas might be inundated.

A computer simulation explores the impact of measles outbreaks in cities across the U.S. Users can see how an outbreak would play out if their city had high or low vaccination rates.

Simulation Brings Facts to Measles Outbreak and Vaccination Debate

February 17, 2015 2:28 pm | by University of Pittsburgh | News | Comments

To bring facts and clarity to the public debate about immunization in light of the recent measles outbreak, the University of Pittsburgh Graduate School of Public Health unveiled a computer simulation that explores the impact of measles outbreaks in cities across the U.S. Users can see how an outbreak would play out if their city had high or low vaccination rates.

NASA scientists used tree rings to understand past droughts and climate models incorporating soil moisture data to estimate future drought risk in the 21st century.

Unprecedented Megadroughts Likely for Western US: Driest Period in 1,000 Years

February 13, 2015 3:47 pm | by Earth Institute at Columbia University | News | Comments

During the second half of the 21st century, the U.S. Southwest and Great Plains will face persistent drought worse than anything seen in times ancient or modern, with the drying conditions “driven primarily” by human-induced global warming, a new study predicts. The research says the drying would surpass in severity any of the decades-long “megadroughts” that occurred much earlier during the past 1,000 years.

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Qian and colleagues found that the topological phases in the TMDC materials can be turned on and off by simply applying a vertical electric field that is perpendicular to the atomic plane of the material. That's shown here in calculations by the red cross

Exotic States Materialize with Supercomputers

February 13, 2015 11:26 am | by Jorge Salazar, Texas Advanced Computing Center | News | Comments

Scientists used supercomputers to find a new class of materials that possess an exotic state of matter known as the quantum spin Hall effect. The researchers published their results in the journal Science in December 2014, where they propose a new type of transistor made from these materials.

Static example of the experimental Potential Storm Surge Inundation Map, here for the Texas Gulf Coast, outside of Houston. The final product will be interactive with pan and zoom capabilities. Courtesy of the National Hurricane Center (NHC)

Communicating Hurricanes’ Real Risks

February 11, 2015 12:08 pm | by NSF | News | Comments

A hurricane is heading toward the coast. Weather forecasters predict strong winds, massive waves and intense rainfall. But what does that mean for you? Will your neighborhood be flooded? Should you evacuate?

Hurricane Katrina Courtesy of NASA/Jeff Schmaltz, MODIS Land Rapid Response Team

Comprehensive Database of Detailed Storm Surge Data Available for Download

February 6, 2015 3:03 pm | by National Oceanography Centre | News | Comments

A new online resource will help coastguards, meteorological organizations and scientific communities predict future storm surge patterns. The freely-accessible database has been compiled through the multi-partner, international eSurge project, which was launched in 2011 with the aim of making available observational data to improve the modeling and forecasting of storm surges around the world using advanced techniques and instruments.

Brain Researcher Marianne Fyhn receives computation help from, among others, Gaute Einevoll and Anders Malthe-Sørenssen to acquire an understanding of how the brain Works.

Mathematics to Reveal Secrets of the Brain

February 5, 2015 4:33 pm | by Yngve Vogt, University of Oslo | News | Comments

Top researchers are using mathematical modelling and heavy computations to understand how the brain can both remember and learn. Ten years ago, when the team of Marianne Fyhn and Torkel Hafting Fyhn cooperated with the Nobel Prize winning team of May-Britt and Edvard Moser at NTNU, they discovered the sense of orientation in the brain.

Devize Monte Carlo Simulation Software for Process Improvement

Devize Monte Carlo Simulation Software for Process Improvement

February 5, 2015 3:39 pm | Minitab Inc. | Product Releases | Comments

Devize is cloud-based Monte Carlo simulation software designed to guide engineers through the entire simulation and optimization process. The Web-based application’s workflow allows users to simulate possible outcomes, and results are presented with straightforward explanations.

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Artist’s depiction of light traveling through a photonic crystal superlattice, where holes have been randomly patterned. The result is a more narrow beam of light. Courtesy of Nicoletta Barolini

More Precise Information Transfer in Computer Chips Using Disorder to Control Light

February 4, 2015 2:56 pm | by Matthew Chin, UCLA | News | Comments

A breakthrough could lead to the more precise transfer of information in computer chips, as well as new types of optical materials for light emission and lasers. Researchers were able to control light at tiny lengths around 500 nanometers — smaller than the light’s own wavelength — by using random crystal lattice structures to counteract light diffraction. The discovery could begin a new phase in laser collimation.

Small magnetic whirls may revolutionize future data storage and information processing if they can be moved rapidly and reliably in small structures. A team of scientists has now been able to investigate the dynamics of these whirls experimentally.

Tiny Magnetic Whirls Observed in Simulation and in Theory

February 3, 2015 3:22 pm | by Johannes Gutenberg-Universität Mainz | News | Comments

Small magnetic whirls may revolutionize future data storage and information processing if they can be moved rapidly and reliably in small structures. A team of scientists has now been able to investigate the dynamics of these whirls experimentally.

MIT researchers have developed a mathematical equation that predicts how surface patterns form on curved objects. Pictured is a sphere with a combination of hexagons and labyrinthine patterns, and a more complex, torus-shaped object with hexagonal dimples

Wrinkle Predictions: New Mathematical Theory may Explain Patterns in Fingerprints, Raisins, Microlenses

February 2, 2015 2:00 pm | by Jennifer Chu, MIT | News | Comments

As a grape slowly dries and shrivels, its surface creases, ultimately taking on the wrinkled form of a raisin. Similar patterns can be found on the surfaces of other dried materials, as well as in human fingerprints. While these patterns have long been observed in nature, and more recently in experiments, scientists have not been able to come up with a way to predict how such patterns arise in curved systems, such as microlenses.

TERATEC Forum 2015 - 10th Anniversary

TERATEC Forum 2015: The International Meeting for Simulation and High Performance Computing

January 29, 2015 3:36 pm | by TERATEC Forum | Events

TERATEC brings together top international experts in high performance numerical design and simulation, making it the major event in France and in Europe in this area. It emphasizes again the strategic importance of these technologies for developing industrial competitiveness and innovation capacity.

Production of growth factors (IGF-II) as public goods game network: this microscopic image shows how cancer cells (colorless cells) that do not produce IGF-II but need it for their growth reproduce in a population of cancer cells that produces and consume

Game Theory Explains Social Interactions of Cancer Cells

January 28, 2015 2:33 pm | by University of Basel | News | Comments

Researchers were able to predict the interactions of cancer cells using a part of game theory known as the public goods game, suggesting that work on the social interactions among cancer cells may provide insight into the dynamics of cancer. Researchers applied this model to the cooperation between producing and non-producing members of a cancer cell population, in order to examine if the model is also applicable to biological processes.

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ANSYS 16.0 Simulation Software

ANSYS 16.0 Simulation Software

January 28, 2015 2:15 pm | Ansys, Inc. | Product Releases | Comments

ANSYS 16.0 simulation software delivers capabilities to verify electronics reliability and performance throughout the design process and complex electronics industry supply chains.The single-window, integrated Electronics Desktop interface brings electromagnetic, circuit and systems analysis into a seamless working environment to maximize productivity and ensure users are following simulation best practices.

Scroll being prepared for scanning in its container at the European Synchrotron Radiation Facility in Grenoble, France. Courtesy of Brent Seales

First-of-its-kind Software Enables Major Breakthrough in Reading Ancient Scrolls

January 26, 2015 2:39 pm | by University of Kentucky | News | Comments

After working for more than 10 years on unlocking an ancient piece of history, what lies inside damaged Herculaneum scrolls, UK Department of Computer Science Chair and Professor Brent Seales will accomplish the next step in allowing the world to read the scrolls, which cannot be physically opened. A major development in the venture, Seales is building software that will visualize the scrolls' writings as they would be if unrolled.

This simulation, which models a rheometer with particles, can help determine how well a rheometer design works at characterizing a fluid. The NIST team is performing a number of simulations like this one, varying the shape and number of blades to better i

Predicting Concrete Flow Properties from Simple Measurements

January 23, 2015 2:44 pm | by NIST | News | Comments

Just because concrete is the most widely used building material in human history doesn’t mean it can’t be improved. A recent study using DOE Office of Science supercomputers has led to a new way to predict concrete’s flow properties from simple measurements. The results should help accelerate the design of a new generation of high-performance and eco-friendly cement-based materials by reducing time and costs associated with R&D.

OnSight uses real rover data to create a 3-D simulation of the Martian environment where mission scientists can "meet" to discuss rover operations. Courtesy of NASA/JPL-Caltech

Holographic Computing will allow Scientists to Work on Mars

January 23, 2015 2:24 pm | by NASA | News | Comments

NASA and Microsoft have teamed up to develop software called OnSight, a new technology that will enable scientists to work virtually on Mars using wearable technology called Microsoft HoloLens. Developed by NASA's Jet Propulsion Laboratory in Pasadena, CA, OnSight will give scientists a means to plan and, along with the Mars Curiosity rover, conduct science operations on the Red Planet.

This puzzle of a material which seems solid to any observer while appearing fluid under the microscope is an old one. And, even with the help of today's supercomputers, it seems impossible to verify in simulations whether a glass ever stops flowing. Court

Puzzle: Does Glass Ever Stop Flowing?

January 22, 2015 2:15 pm | by University of Bristol | News | Comments

Is glass a true solid? Researchers have combined computer simulation and information theory, originally invented for telephone communication and cryptography, to answer this puzzling question. This puzzle of a material which seems solid to any observer while appearing fluid under the microscope is an old one. And, even with the help of today's supercomputers, it seems impossible to verify in simulations whether a glass ever stops flowing.

Terence Tao, a professor of mathematics at UCLA, is very interested in solving the Navier-Stokes equations, which are among the most difficult tackled by mathematicians. Understanding them could help with modeling weather, ocean currents, the flow of wate

Can Wave Equations Explode? Computer Algorithms may Provide the Answer

January 13, 2015 1:43 pm | by Marlene Cimons, National Science Foundation | News | Comments

Wave equations help describe waves of light, sound and water as they occur in physics. Also known as partial differential equations, they have valuable potential for predicting weather or earthquakes, or certain types of natural disasters. Tao is interested in the theoretical side of these equations, seeking to discover with computer algorithms whether they can behave in a way that typically is the opposite of what occurs in the real world.

Visual-Environment 10.0

Visual-Environment 10.0

January 9, 2015 11:15 am | Esi Corporation | Product Releases | Comments

Visual-Environment 10.0 is a comprehensive simulation platform designed to enable the swift integration of calculations using the open source CFD modules of OpenFOAM. It allows engineers to accelerate preparation of most common CFD calculations, including airflow for external aerodynamics, internal airflow for underhood and climate control, and investigation of flow around rotating bodies.

The top figure shows the progression of deflagration through the explosive cylinders (light blue) transitioning to detonation (0.710 msec). The dark blue region shows the position of the 2D pressure slice illustrated in the bottom figure. Courtesy of Jacq

Large-scale 3-D Simulations Aim at Safer Transport of Explosives

January 7, 2015 2:20 pm | by Jim Collins, Argonne Leadership Computing Facility | News | Comments

In 2005, a semi-truck hauling 35,000 pounds of explosives through the Spanish Fork Canyon in Utah crashed and caught fire, causing a dramatic explosion that left a 30-by-70-foot crater in the highway. Fortunately, there were no fatalities. Such accidents are extremely rare but can, obviously, have devastating results. So, understanding better exactly how such explosions occur can be an important step to learning how better to prevent them.

NOAA's supercomputer upgrades will provide more timely, accurate weather forecasts.

Environmental Intelligence: Significant Investment in Next-Gen Supercomputers to Improve Weather Forecasts

January 6, 2015 12:26 pm | by NOAA | News | Comments

NOAA has announced the next phase in the agency’s efforts to increase supercomputing capacity to provide more timely, accurate, reliable and detailed forecasts. By October 2015, the capacity of each of NOAA’s two operational supercomputers will jump to 2.5 petaflops, for a total of 5 petaflops — a nearly tenfold increase from the current capacity.

COMSOL Server

COMSOL Server

December 18, 2014 4:41 pm | Comsol, Inc. | Product Releases | Comments

COMSOL Server was developed specifically for running applications built with the Application Builder, which allows COMSOL Multiphysics software users to build an intuitive interface around their model that can be run by anyone — even those without prior simulation experience. Applications can be distributed throughout an organization using a Windows-native client or Web browser.

This simulation illustrates the total mass density (left) and temperature (right) of a dimethyl ether jet fuel simulation. It is a snapshot of the solution that corresponds to a physical time of 0.00006 seconds. Courtesy of Matthew Emmett, Weiqun Zhang

Optimized Algorithms Give Combustion Simulations a Boost

December 18, 2014 4:32 pm | by Lawrence Berkeley National Laboratory | News | Comments

Turbulent combustion simulations, which provide input to the design of more fuel-efficient combustion systems, have gotten their own efficiency boost. Researchers developed new algorithmic features that streamline turbulent flame simulations, which play an important role in designing more efficient combustion systems. They tested the enhanced code on the Hopper supercomputer and achieved a dramatic decrease in simulation times.

Simulated and observed annual maximum five-day accumulated precipitation over land points, averaged. Observations are calculated from the period 1979 to 1999. Model results are calculated from the period 1979 to 2005.

Global High-resolution Models Fuel New Golden Age of Climate Science

December 18, 2014 4:14 pm | by Lawrence Berkeley National Laboratory | News | Comments

Not long ago, it would have taken several years to run a high-resolution simulation on a global climate model. But using supercomputing resources at NERSC, climate scientist Michael Wehner was able to complete a run in just three months. What he found was that not only were the simulations much closer to actual observations, but the high-resolution models were far better at reproducing intense storms, such as hurricanes and cyclones.

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