Back to Table of contents

Primeur weekly 2019-06-03

Quantum computing

Quantum information gets a boost from thin-film breakthrough ...

Focus on Europe

Wrap up of an inspiring EuroHPC Summit Week 2019 including PRACEdays19 ...

Hardware

Excelero and ThinkParQ go to market with integrated NVMesh and BeeGFS ...

Tachyum successfully deploys Linux OS on universal processor chip ...

Supermicro displays Resource-Saving server technology and new 5G Edge solutions at Computex 2019 ...

NVIDIA launches Edge computing platform to bring real-time AI to global industries ...

TYAN showcases HPC, storage and Cloud server platforms featuring 2nd Gen Intel Xeon scalable processors at Computex 2019 ...

Applications

DesignSafe and ADCIRC provide storm surge simulators for natural hazards community ...

University of Wyoming faculty have until June 21 to apply for supercomputer use ...

The Spanish supercomputer that helps design aerodynamics for thousands of UK cars ...

DJI Manifold 2 onboard supercomputer transforms drones into autonomous robots ...

Study finds Red Sea may be cooling rather than warming ...

Garching physicists develop a new method to carry computations in quantum field theory ...

NCSA's Blue Waters Petascale Computing Hackathon now accepting applications ...

Combination of experiments and calculations allows examination of boron's complicated dance ...

New Argonne computational model to accelerate engine development for next-generation hypersonic flight ...

The Cloud

Vulnerability of cloud service hardware uncovered ...

Univa's Navops Launch solution simplifies Cloud usage to help customers migrate their HPC workloads to the Cloud ...

New Argonne computational model to accelerate engine development for next-generation hypersonic flight


This three-dimensional numerical simulation captures complex combustion dynamics in a realistic, non-premixed, rotating detonation engine configuration. Image by Argonne National Laboratory.
29 May 2019 Argonne - Scientists at the U.S. Department of Energy's (DOE) Argonne National Laboratory, working in collaboration with Air Force Research Laboratory (AFRL) and Convergent Science Inc., have created a new numerical modelling tool that allows for a better understanding of a powerful engine that could one day propel the next generation of airplanes and rockets.

Rotating detonation engines (RDEs) have received significant attention from the propulsion community in the last decade.

Unlike conventional gas turbine engines, which rely on subsonic constant pressure combustion, RDEs leverage high-intensity, self-sustaining detonation - a supersonic reaction wave coupled with a shock - to rapidly consume the fuel-air mixture, typically in a ring-shaped, cylindrical chamber.

With RDEs, there is an effective pressure gain: The intense and rapid energy release from detonation can be used to generate extremely high thrust from a relatively small combustor.

In addition, these engines are compact, contain no moving parts, are more efficient than conventional combustion systems, provide steady thrust at high frequencies and can be integrated with existing aircraft and rocket engine hardware.

These unique features have made RDEs the subject of extensive research by various agencies, including the Air Force, Naval, and Army Research Laboratories, the National Aeronautics and Space Administration as well as aerospace companies in the United States and abroad.

Despite the potential benefits they offer, practical implementation of RDEs has been elusive.

"The operation and performance of RDEs depends on many factors", stated Brent Rankin, research engineer at AFRL. "The combustion behaviour must be studied and optimized over a large design space for the technology to become practically viable."

Keith Bradley, Argonne's director of National Security Programmes, said the lab is an ideal place to conduct this research.

"Argonne has unique abilities to do science at scale. Our scientific expertise, one-of-a-kind experimental facilities, and advanced modeling and simulation prowess allow for better, faster and cheaper development as compared to more traditional, Edisonian approaches", he stated.

Previous numerical simulations gave researchers fundamental insights into the combustion phenomena occurring in RDEs, but they were computationally very expensive, precluding rigorous studies over a wide range of operating conditions.

In an effort to solve this problem, Sibendu Som, computational scientist and manager of Argonne's Multi-Physics Computations group, and Pinaki Pal, mechanical engineer in Argonne's Energy Systems division, teamed up with Brent Rankin at AFRL and researchers at Convergent Science Inc. to develop a computational fluid dynamics (CFD) model to predict the combustion behaviour of RDEs.

"This work was geared toward developing a robust, predictive and computationally efficient combustion model for RDEs", stated Sibendu Som.

Pinaki Pal, who is leading Argonne's efforts, said computational modeling and simulation can play a major role in designing these engines.

"Very few studies have looked at modeling the full-scale RDE combustor geometry, which gives you the most accurate information - primarily because these simulations can be very time-consuming", he stated. ​"The new model allows us to capture combustion behaviour in realistic configurations accurately and at a reasonable cost."

The model was validated against data provided by Brent Rankin's experiments at AFRL. The team demonstrated that the CFD model can capture RDE combustion dynamics under varying operating conditions.

"Such a model can be used to quickly generate simulation data over a large design space, which can then be coupled with advanced machine-learning-based techniques to rapidly optimize the combustor design", Pinaki Pal stated. "We have demonstrated this approach for internal combustion engines and it can be extended to RDEs as well."

Source: Argonne National Laboratory

Back to Table of contents

Primeur weekly 2019-06-03

Quantum computing

Quantum information gets a boost from thin-film breakthrough ...

Focus on Europe

Wrap up of an inspiring EuroHPC Summit Week 2019 including PRACEdays19 ...

Hardware

Excelero and ThinkParQ go to market with integrated NVMesh and BeeGFS ...

Tachyum successfully deploys Linux OS on universal processor chip ...

Supermicro displays Resource-Saving server technology and new 5G Edge solutions at Computex 2019 ...

NVIDIA launches Edge computing platform to bring real-time AI to global industries ...

TYAN showcases HPC, storage and Cloud server platforms featuring 2nd Gen Intel Xeon scalable processors at Computex 2019 ...

Applications

DesignSafe and ADCIRC provide storm surge simulators for natural hazards community ...

University of Wyoming faculty have until June 21 to apply for supercomputer use ...

The Spanish supercomputer that helps design aerodynamics for thousands of UK cars ...

DJI Manifold 2 onboard supercomputer transforms drones into autonomous robots ...

Study finds Red Sea may be cooling rather than warming ...

Garching physicists develop a new method to carry computations in quantum field theory ...

NCSA's Blue Waters Petascale Computing Hackathon now accepting applications ...

Combination of experiments and calculations allows examination of boron's complicated dance ...

New Argonne computational model to accelerate engine development for next-generation hypersonic flight ...

The Cloud

Vulnerability of cloud service hardware uncovered ...

Univa's Navops Launch solution simplifies Cloud usage to help customers migrate their HPC workloads to the Cloud ...