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Environment and Energy

Here we present a choice of impressive projects from the environmental sciences and simulations from energy research which have been carried out on GCS supercomputers.

Convection Permitting Channel Simulation

Convection Permitting Latitude-Belt Simulation Using the Weather Research and Forecasting (WRF) Model

Thanks to the availability of HLRS’s petascale HPC system Hornet, researchers of the Institute of Physics and Meteorology of the University of Hohenheim were able to run a highly complex climate simulation for a time period long enough to cover various extreme weather events on the Northern hemisphere at a previously unmatched spatial resolution. Deploying the highly scalable Weather Research and Forecasting (WRF) model on 84,000 compute cores of Hornet, the achieved results confirm an extraordinary quality with respect to the simulation of fine scale meteorological processes and extreme events.

Principal Investigator: Volker Wulfmeyer, Institute of Physics and Meteorology, University of Hohenheim
HPC Platform: Hornet of HLRS - Date published: June 2015

More: Convection Permitting Latitude-Belt Simulation Using the Weather Research and Forecasting (WRF) Model …

Optical Simulations of Thin-Film Solar Cells

Optical Simulations of Thin-Film Solar Cells

Organic Photovoltaics are a promising thin-film solar cell technology since all the constituting layers can be processed from solution processable materials. In order to improve the efficiency of those solar cells it is necessary to optimize their light trapping ability. Different techniques were evaluated in a research project on SuperMUC of LRZ.

Principal Investigator: Christoph Pflaum, Department of Computer Science, University of Erlangen-Nürnberg (Germany)
HPC Platform: SuperMUC of LRZ - Date published: April 2015

More: Optical Simulations of Thin-Film Solar Cells …

High-Resolution Climate Predictions and Short-Range Forecasts to Improve the Process Understanding and the Representation of Land-Surface Interactions in the WRF Model in Southwest Germany (WRFCLIM)

High-Resolution Climate Predictions and Short-Range Forecasts to Improve the Process Understanding and the Representation of Land-Surface Interactions in the WRF Model in Southwest Germany (WRFCLIM)

Scientists from the University of Hohenheim (Stuttgart/Germany) aim to investigate and to improve the performance of regional climate simulations in Europe with the Weather Research and Forecast (WRF) model. The model is operated from 12 km down to the convection permitting scale of 3 km, for advancing process understanding.

Principal Investigator: Kirsten Warrach-Sagi, Institute of Physics and Meteorology, University of Hohenheim, Stuttgart (Germany)
HPC Platform: Hermit of HLRS - Date Published: March 2015

More: High-Resolution Climate Predictions and Short-Range Forecasts to Improve the Process Understanding and the Representation of Land-Surface Interactions in the WRF Model in Southwest Germany (WRFCLIM) …

Numerical Simulation of Gravity-Wave Breaking in the Atmosphere

Numerical Simulation of Gravity-Wave Breaking in the Atmosphere

The flow in the earth's atmosphere involves many complex features. One of these features are so-called gravity waves. They become important as soon as they break somewhere in the atmosphere, since this breaking results in a strong patch of turbulence for no apparent reason. In order to improve the basic understanding of the breaking process, scientists conducted high-resolution simulations of different types of gravity-wave breaking events.

Principal Investigator: Sebastian Remmler, Lehrstuhl für Aerodynamik und Strömungsmechanik, Technische Universität München (Germany)
HPC Platform: Hermit of HLRS - Date published: March 2015

More: Numerical Simulation of Gravity-Wave Breaking in the Atmosphere …

Direct Numerical Simulation of the Formation of Subaqueous Sediment Patterns

Direct Numerical Simulation of the Formation of Subaqueous Sediment Patterns

Scientists of the Institute for Hydrodynamics of the Karlsruhe Institute of Technology (KIT) have – for the first time – performed high-fidelity numerical simulations of the formation of sediment patterns in a channel flow configuration.

Principal Investigator: Markus Uhlmann, Institute for Hydrodynamics, Karlsruhe Institute of Technology/KIT (Germany)
HPC Platform: SuperMUC of LRZ - Date published: March 2015

More: Direct Numerical Simulation of the Formation of Subaqueous Sediment Patterns …

Response of the Atlantic Ocean Circulation to Greenland Ice Sheet Melting

Response of the Atlantic Ocean Circulation to Greenland Ice Sheet Melting

Using the computing capabilities of HLRS system Hermit, a team of scientists used the Community Earth System Model (CESM) with a strongly eddying ocean submodel to study the presence of ocean eddies on the sensitivity of the Meridional Overturning Circulation (MOC) in the Atlantic Ocean to the Greenland Ice Sheet (GrIS) freshwater anomalies.

Principal Investigator: Henk A. Dijkstra, Institute for Marine and Atmosphere Research Utrecht (IMAU), Utrecht University (The Netherlands)
HPC Platform: Hermit of HLRS - Date published: March 2015

More: Response of the Atlantic Ocean Circulation to Greenland Ice Sheet Melting …

From Atoms to Eddies: Predictive-Quality Surface Reaction Chemistry in Real Reactor Models

From Atoms to Eddies: Predictive-Quality Surface Reaction Chemistry in Real Reactor Models

A team of scientists of the Technische Universtität München employed an instantaneous steady-state approximation to present steady-state reactivity data from kinetic Monte Carlo (kMC) simulations in the form of an interpolated data field as boundary conditions for the computational fluid dynamics simulation.Their goal was to test the capability of the code in managing complex computational domains, thus allowing for the first time to extend kMC simulations to geometries and conditions relevant to technological applications.

Principal Investigator: Christoph Scheurer, Fakultät für Chemie, Technische Universtität München (Germany)
HPC Platform: SuperMUC of LRZ - Date published: January 2015

More: From Atoms to Eddies: Predictive-Quality Surface Reaction Chemistry in Real Reactor Models …

Multi-Species Reaction-Diffusion in Complex Geometries

Multi-Species Reaction-Diffusion in Complex Geometries

The cold combustion in fuel cells is a promising alternative energy technology that does not produce greenhouse gases. One of the main problems of solid oxide fuel cells (SOFC) that reduces the efficiency dramatically is the chromium poisoning. Simulation results achieved on SuperMUC were used to improve continuous models for porous media and study the depositioning of chromium in a real cathode.

Principal Investigator: Nikolaus A. Adams, Lehrstuhl für Aerodynamik und Strömungsmechanik, Technische Universität München (Germany)
HPC Platform: SuperMUC of LRZ - Date published: October 2014

More: Multi-Species Reaction-Diffusion in Complex Geometries …

Massive Parallel Computation of Non-Linear Multi-Field Problems in Terrestrial Systems

Massive Parallel Computation of Non-Linear Multi-Field Problems in Terrestrial Systems

In past decades, high performance computing has become a valuable tool in many fields of environmental science and technology to utilize computational power for better characterization of the complexity of environmental systems as well as predicting their evolution in time. The challenge is to develop efficient numerical schemes and software implementations which can take full advantage of today’s supercomputing platforms.

Principal Investigator: Olaf Kolditz, Technische Universität Dresden (Germany)
HPC Platform: JUQUEEN of JSC - Date published: September 2014

More: Massive Parallel Computation of Non-Linear Multi-Field Problems in Terrestrial Systems …

Self-Asssembled Porous Media

Self-Assembled Porous Media

Scientists studied the possibility of using the emulsification process of particle-stabilized emulsions to create self-assembled porous media. It was shown that this type of self-assembly can result in highly tuneable systems, which can be optimized for various purposes.

Principal Investigator: Jens Harting, Department of Applied Physics, Technische Universiteit Eindhoven (The Netherlands)
HPC Platform: JUQUEEN of JSC - Date published: July 2014

More: Self-Assembled Porous Media …

Ab Initio Geochemistry of the Deep Earth

Ab Initio Geochemistry of the Deep Earth

Researchers deploy molecular modeling approaches based on quantum mechanics to develop structure models for crystals as well as disordered materials at the conditions of the Earth's lower crust and mantle. Such ab initio simulations also provide a unique access to physical properties and thermodynamic potentials of the respective materials.

Principal Investigator: Sandro Jahn, Deutsches GeoForschungsZentrum/GFZ, Potsdam (Germany)
HPC Platform: JUQUEEN of JSC - Date published: July 2014

More: Ab Initio Geochemistry of the Deep Earth …

Proect SeisSol

Seismic Science Project SeisSol

In a collaborative effort, geophysicists, computer scientists, and experts of the Leibniz Supercomputing Centre optimized and completely parallelised the 70,000 lines of code of earthquake simulation software SeisSol. The joint effort resulted in a sustained system performance of 1.09 Petaflops for a 3+ hours simulation run using all 147,456 compute cores of HPC system SuperMUC.

Principal Investigator: Michael Bader, Institut für Informatik, Technische Universität München (Germany)
HPC Platform: SuperMUC of LRZ - Date published: July 2014

More: Seismic Science Project SeisSol …

TERRA-NEO: Integrated Co-Design of an Exa-Scale Earth Mantle Modeling Framework

TERRA-NEO: Integrated Co-Design of an Exa-Scale Earth Mantle Modeling Framework

TERRA-NEO is an ambitious project to construct a next generation mantle circulation model that allows simulation-based breakthroughs in our understanding of the solid Earth. Current and future supercomputers can deliver the exceptional computational power needed for this research field.

Principal Investigator: Björn Gmeiner, Lehrstuhl Informatik 10/Systemsimulation, Universität Erlangen-Nürnberg (Germany)
HPC Platform: JUQUEEN of JSC - Date published: February 2014

More: TERRA-NEO: Integrated Co-Design of an Exa-Scale Earth Mantle Modeling Framework …

Comprehensive ab initio Simulations of Turbulence in ITER-Relevant Fusion Plasmas

Comprehensive ab initio Simulations of Turbulence in ITER-Relevant Fusion Plasmas

Scientists employed one of the world-leading plasma turbulence codes to carry out pioneering studies of actual large-scale fusion devices with an unprecedented level of realism, bringing the community one step closer to the ultimate goal of a “virtual tokamak”.

Principal Investigator: Frank Jenko, Max Planck Institute for Plasma Physics, Garching (Germany)
HPC Platform: SuperMUC of LRZ - Date published: March 2014

More: Comprehensive ab initio Simulations of Turbulence in ITER-Relevant Fusion Plasmas …

Full-F Gyrokinetic Simulation of Edge Pedestal in Textor

Full-F Gyrokinetic Simulation of Edge Pedestal in Textor

Good knowledge about turbulent transport is needed for further optimization of fusion reactors but realistic transport time scale simulations of plasma turbulence are computationally very demanding. Using HPC simulation technologies, scientists aimed at getting a better understanding of the mechanisms behind the sudden improvement in confinement observed in experiments.

Principal Investigator: Timo Kiviniemi, Department of Applied Physics, Aalto University School of Science (Finland)
HPC Platform: SuperMUC - Date Published: February 2014

More: Full-F Gyrokinetic Simulation of Edge Pedestal in Textor …

Direct Numerical Simulation of Turbulent Mixing in the Planetary Boundary Layer

Direct Numerical Simulation of Turbulent Mixing in the Planetary Boundary Layer

Turbulence controls how the planetary boundary layer mixes with the overlying free troposphere. This process is particularly important in the presence of clouds. Scientists at the Max Planck Institute for Meteorology investigate how this mixing occurs using numerical simulations. This research helps improving the representation small-scale turbulence processes in weather and climate models.

Principal Investigator: Juan Pedro Mellado, Max Planck Institute for Meteorology, Hamburg (Germany)
HPC Platform: JUQUEEN of JSC - Date published: February 2014

More: Direct Numerical Simulation of Turbulent Mixing in the Planetary Boundary Layer …

Project SHAKEIT

Project SHAKEIT

Researchers leverage the computing power of HPC system SuperMUC for the simulation of seismic wave field in realistic 3D geological structures.

Principal Investigator: Andrea Morelli, Istituto Nazionale di Geofisica e Vulcanologia, Bologna (Italy)
HPC Plaform: SuperMUC - Date published: February 2014

More: Project SHAKEIT …

High Resolution Climate Modelling

High Resolution Climate Modelling

High resolution climate modelling with the CCLM regional model: Leveraging the computing power of HLRS supercomputer Hermit, a team of scientists from the Karlsruhe Institute of Technology investigates the regional climate of Central Europe/Germany and Africa by means of the climate version of the COSMO model (CCLM).

Principal Investigator: Hans-Jürgen Panitz, Institut für Meteorologie und Klimaforschung, Karlsruher Institut für Technologie (KIT) (Germany)
HPC Platform: Hermit of HLRS - Date published: February 2014

More: High Resolution Climate Modelling …

Highly-resolved Numerical Simulations of Bed Load Transport in a Turbulent Open Channel Flow

Highly-resolved Numerical Simulations of Bed Load Transport in a Turbulent Open Channel Flow

Leveraging the computing power of HPC-system JUQUEEN, scientists of Technische Universität Dresden aim for new insights regarding the prediction of turbulence-induced erosion and near-bed transport of sediment particles in turbulent flow. A study employed Direct Numerical Simulations (DNS) of a turbulent flow laden with a large number of particles with parameters of the disperse phase chosen similar to laboratory experiments.

Principal Investigator: Jochen Fröhlich, Institut für Strömungsmechanik, Technische Universität Dresden (Germany)
HPC Platform: JUQUEEN of JSC - Date published: January 2014
More: Highly-resolved Numerical Simulations of Bed Load Transport in a Turbulent Open Channel Flow …

DNS of Gas Transfer at the Air-Water Interface

DNS of Gas Transfer at the Air-Water Interface

The gas transfer process across the air-water interface plays an important role in many industrial and environmental systems. Very thin diffusive layers mark the interfacial mass transfer of low-diffusive substances. Using simulation technologies, scientists try to achieve a good understanding of the physical processes by resolving the gas transfer in these thin layers.

Principal Investigator: H. Herlina, Environmental Fluid Mechanics Group, Karlsruhe Institute of Technology (Germany)
HPC Platform: SuperMUC of LRZ - Date published: November 2013
More: DNS of Gas Transfer at the Air-Water Interface …

Vertical Axis Wind Turbines

Vertical Axis Wind Turbines for Future Large Offshore Farms

To study the aerodynamics of vertical axis wind turbines (VAWT) and to carefully characterize the vortex dynamics and decay of VAWT wakes, a team of scientists conducts extensive simulation runs on GCS supercomputers.

Principal Investigator: Philippe Chatelain, Institute of Mechanics, Materials and Civil Engineering (iMMC), Louvain School of Engineering (Belgium)
HPC Platform: Jugene of JSC - Date published: September 2013
More: Vertical Axis Wind Turbines for Future Large Offshore Farms …

Simulation of a seismic wave field during an earthquake in north Italy. © M. Meschede

Simulation of 3-D Seismic Wave Propagation in a Synthetic Earth

The imaging of the Earth‘s interior three-dimensional structure is a prerequisite for the understanding of the mechanisms that drive the continental plates, shape our landscapes, and lead to earthquakes and volcanoes.

Principal Investigator: Heiner Igel, Department für Geo- und Umweltwissenschaften, Geophysik - Ludwig-Maximilians-Universität München (Germany)
HPC Platform: Leibniz Supercompuing Centre - Date published: Sept. 2013
More: Simulation of 3-D Seismic Wave Propagation in a Synthetic Earth …

Simulation of current and future climates

Project UPSCALE: Counting the Storms

Scientists use GCS supercomputers for compute-intensive simulations in order to increase the fidelity of global climate simulations and provide quantitative information about the frequency of high-impact events and their risks. The research activity comprises a large series of global experiments (an ensemble), with each member of the ensemble dynamically simulating 27 years of both current and future climates.

Principal Investigator: Pier Luigi Vidale, Department of Meteorology, University of Reading U.K.)
HPC Platform: Hermit of HLRS - Date published: September 2013
More: Project UPSCALE: Counting the Storms …

Simulation of combustion power plants

Simulation Technologies for Combustion Power Plants

Concerns about the present global energy situation and the impacts of climate change are the driving forces for optimizing combustion power plants operation towards maximum efficiency, and thus minimizing the emission of greenhouse gases. Computational modelling of the combustion process in industrial scale combustion systems has become a key technology to achieve this ambitious goal.

Principal Investigator: Benedetto Risio, RECOM Services GmbH, Stuttgart (Germany)
HPC Platform: Hermit of HLRS - Date published: September 2013
More: Simulation Technologies for Combustion Power Plants …

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