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Primeur weekly 2020-06-29

Quantum computing

Atos takes the most powerful quantum simulator in the world to the next level with Atos QLM E ...

New model helps to describe defects and errors in quantum computers ...

Research and Markets to issue 2020 Revenue Assessment for Post-Quantum Cryptography (PQC) report ...

Focus on Europe

Iceland joined the LUMI consortium ...

LRZ to deploy HPE's Cray CS500 system to bring innovative architecture to the science of its users ...

Outcome of the e-IRG Webinar Series organized in the framework of the Croatian EU Presidency on 25-26 May 2020: Grand challenges of e-infrastructures within the new ERA ...

Spring 2020 edition of the e-IRG Magazine available ...

MareNostrum will generate a language model in Spanish based on millions of digital contents from the National Library of Spain ...

A team of bioengineering and computing experts outlines how the creation of text mining and Artificial Intelligence tools could advance biomaterials research and development ...

Barcelona Supercomputing Center releases OmpSs-2 version 2020.06 ...

Barcelona Supercomputing Center releases COMPSs version 2.7 ...

Ghent University engages Atos to build third Tier1 VSC supercomputer supporting research in Flanders ...

Dell Technologies high performance computing customers drive breakthroughs for global impact ...

Hardware

NCSA and Southern Methodist University announce new strategic partnership ...

TYAN brings the latest server advancements at its 2020 Server Solutions Online Exhibition ...

WekaIO awarded a patent for Flash Registry with Write Leveling ...

Western Digital's New NVMe SSDs and NVMe-oF solutions provide the foundation for next-generation, agile data infrastructures ...

CW-WDM MSA Group forms to drive new industry standard for optical laser sources ...

Battelle awarded contract to enable Arctic research ...

Applications

Project to calculate emissions reductions across Europe during the COVID-19 pandemic ...

Supercomputer simulations show how DNA prepares itself for repair ...

Georgia Tech engineers simulate solar cell work using supercomputers ...

A new way of designing global satellite missions ...

Process for 'two-faced' nanomaterials may aid energy, information tech ...

New transatlantic lab decodes the brain with AI ...

Ion conducting polymer crucial to improving neuromorphic devices ...

Scientists develop new tool to design better fusion devices ...

C3.ai Digital Transformation Institute announces COVID-19 awards ...

UCF Consortium announces OpenSNAPI project to develop an open, standard application programming interface for smart networking adapters ...

The Cloud

SDSC's Sherlock Cloud announces Skylab ...

Dell Technologies brings IT infrastructure and Cloud capabilities to Edge environments ...

New technique may enable all-optical data-centre networks ...

Schrödinger expands discovery efforts for COVID-19 Alliance with advanced molecular simulation leveraging high-powered parallel computing on Google Cloud ...

Nebulon emerges from stealth and announces Cloud-Defined Storage ...

Repertoire Immune Medicines receives funding from COVID-19 High Performance Computing Consortium ...

W3BCLOUD raises $20,5 million to roll out a network of data centres dedicated for the blockchain economy ...

Scientists develop new tool to design better fusion devices


PPPL physicist Michael Cole. Credit: Elle Starkman / PPPL Office of Communications.
24 Jun 2020 Princeton - One way that scientists seek to bring to Earth the fusion process that powers the stars is trapping plasma within a twisting magnetic coil device shaped like a breakfast cruller. But the device, called a stellarator, must be precisely engineered to prevent heat from escaping the plasma core where it stokes the fusion reactions. Now, Princeton Plasma Physics Laboratory (PPPL) researchers have demonstrated that an advanced computer code could help design stellarators that confine the essential heat more effectively.

The code, called XGC-S, opens new doors in stellarator research. "The main result of our research is that we can use the code to simulate both the early, or linear, and turbulent plasma behaviour in stellarators", stated PPPL physicist Michael Cole, lead author of the paper reporting the results in Physics of Plasmas . "This means that we can start to determine which stellarator shape contains heat best and most efficiently maintains conditions for fusion."

Fusion combines light elements in the form of plasma - the hot, charged state of matter composed of free electrons and atomic nuclei - and generates massive amounts of energy in the sun and stars. Scientists aim to replicate fusion in devices on Earth for a virtually inexhaustible supply of safe and clean power to generate electricity.

The PPPL scientists simulated the behavior of plasma inside fusion machines that look like a donut but with pinches and deformations that make the device more efficient, a kind of shape known as quasi-axisymmetric . The researchers used an updated version of XGC, a state-of-the-art code developed at PPPL for modelling turbulence in doughnut-shaped fusion facilities called tokamaks, which have a simpler geometry. The modifications by Michael Cole and his colleagues allowed the new XGC-S code to also model plasmas in the geometrically more complicated stellarators.

The simulations showed that a type of disturbance limited to a small area can become complex and expand to fill a larger space within the plasma. The results showed that XGC-S could simulate this type of stellarator plasma more accurately than what was previously possible.

"I think this is the beginning of a really important development in the study of turbulence in stellarators", stated David Gates, head of the Department of Advanced Projects at PPPL. "It opens up a big window for getting new results."

The findings demonstrate the successful modification of the XGC code to simulate turbulence in stellarators. The code can calculate the turbulence in stellarators all the way from the plasma core to the edge, providing a more complete picture of the plasma's behaviour.

"Turbulence is one of the primary mechanisms causing heat to leak out of fusion plasmas", Michael Cole stated. "Because stellarators can be built in a greater variety of shapes than tokamaks, we might be able to find shapes that control turbulence better than tokamaks do. Searching for them by building lots of big experiments is too expensive, so we need big simulations to search for them virtually."

The researchers plan to modify XGC-S further to produce an even clearer view of how turbulence causes heat leakage. The more complete a picture, the closer scientists will be to simulating stellarator experiments in the virtual realm. "Once you have an accurate code and a powerful computer, changing the stellarator design you are simulating is easy", Michael Cole stated.

Researchers performed the simulations using resources at the National Energy Research Scientific Computing Center (NERSC), a DOE User Facility. Support for this research came from the DOE Office of Science (Fusion Energy Sciences).

Source: DOE/Princeton Plasma Physics Laboratory

Back to Table of contents

Primeur weekly 2020-06-29

Quantum computing

Atos takes the most powerful quantum simulator in the world to the next level with Atos QLM E ...

New model helps to describe defects and errors in quantum computers ...

Research and Markets to issue 2020 Revenue Assessment for Post-Quantum Cryptography (PQC) report ...

Focus on Europe

Iceland joined the LUMI consortium ...

LRZ to deploy HPE's Cray CS500 system to bring innovative architecture to the science of its users ...

Outcome of the e-IRG Webinar Series organized in the framework of the Croatian EU Presidency on 25-26 May 2020: Grand challenges of e-infrastructures within the new ERA ...

Spring 2020 edition of the e-IRG Magazine available ...

MareNostrum will generate a language model in Spanish based on millions of digital contents from the National Library of Spain ...

A team of bioengineering and computing experts outlines how the creation of text mining and Artificial Intelligence tools could advance biomaterials research and development ...

Barcelona Supercomputing Center releases OmpSs-2 version 2020.06 ...

Barcelona Supercomputing Center releases COMPSs version 2.7 ...

Ghent University engages Atos to build third Tier1 VSC supercomputer supporting research in Flanders ...

Dell Technologies high performance computing customers drive breakthroughs for global impact ...

Hardware

NCSA and Southern Methodist University announce new strategic partnership ...

TYAN brings the latest server advancements at its 2020 Server Solutions Online Exhibition ...

WekaIO awarded a patent for Flash Registry with Write Leveling ...

Western Digital's New NVMe SSDs and NVMe-oF solutions provide the foundation for next-generation, agile data infrastructures ...

CW-WDM MSA Group forms to drive new industry standard for optical laser sources ...

Battelle awarded contract to enable Arctic research ...

Applications

Project to calculate emissions reductions across Europe during the COVID-19 pandemic ...

Supercomputer simulations show how DNA prepares itself for repair ...

Georgia Tech engineers simulate solar cell work using supercomputers ...

A new way of designing global satellite missions ...

Process for 'two-faced' nanomaterials may aid energy, information tech ...

New transatlantic lab decodes the brain with AI ...

Ion conducting polymer crucial to improving neuromorphic devices ...

Scientists develop new tool to design better fusion devices ...

C3.ai Digital Transformation Institute announces COVID-19 awards ...

UCF Consortium announces OpenSNAPI project to develop an open, standard application programming interface for smart networking adapters ...

The Cloud

SDSC's Sherlock Cloud announces Skylab ...

Dell Technologies brings IT infrastructure and Cloud capabilities to Edge environments ...

New technique may enable all-optical data-centre networks ...

Schrödinger expands discovery efforts for COVID-19 Alliance with advanced molecular simulation leveraging high-powered parallel computing on Google Cloud ...

Nebulon emerges from stealth and announces Cloud-Defined Storage ...

Repertoire Immune Medicines receives funding from COVID-19 High Performance Computing Consortium ...

W3BCLOUD raises $20,5 million to roll out a network of data centres dedicated for the blockchain economy ...