# Projects

Find out about the latest applications running on the GCS supercomputers.

## PAdDLES: p-Adaptive Discretisations for Large Eddy Simulation in Industrial Geometry

Using the HPC capabilities of GCS, scientists assess a DGM (discontinuous Galerkin method) solver for scale-resolving simulations. The main goal of the solver is the evaluation of whether p-adaptive DGM can be used for fast and reliable LES of turbomachinery flows.
**More: PAdDLES: p-Adaptive Discretisations for Large Eddy Simulation in Industrial Geometry …**

## First Lattice QCD Study of B-physics With Four Flavors of Dynamical Quarks

Researchers from the three universities of Rome, the universities of Valencia, Paris XI, Groningen, Bonn, and Berlin have formed a team to carry out an extensive study of the physics of mesons containing a beauty quark. The results of this study will allow to address issues relevant for the phenomenology of the so-called flavor sector of the Standard Model and its possible extensions to New Physics.
**More: First Lattice QCD Study of B-physics With Four Flavors of Dynamical Quarks …**

## Magneticum: Simulating Large Scale Structure Formation in the Universe

In project *Magneticum*, scientists perform simulations of which the most computational intensive one covers a cosmic volume of 1 Gpc^{3. }This allows the researchers, for the very first time, to self consistently study galaxy clusters and groups, galaxies, and active galaxy nuclei (AGNs) within an enormously large volume of the Universe.
**More: Magneticum: Simulating Large Scale Structure Formation in the Universe …**

## The Spectrum of Supersymmetric Yang-Mills Theory

In a joint project of scientists of the Universitiy of Münster, the University of Frankfurt, and of DESY, Hamburg, researchers investigate the properties of the

N = 1 supersymmetric Yang-Mills theory, a theory which has supersymmetry and is part of many models for the physics beyond the Standard Model.
**More: The Spectrum of Supersymmetric Yang-Mills Theory …**

## 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”.
**More: Comprehensive ab initio Simulations of Turbulence in ITER-Relevant Fusion Plasmas …**

## Quantum Monte Carlo Simulation of Hydrogen at High Pressure

An international team of physicists used GCS supercomputer Hermit to elucidate important aspects of the hydrogen phase diagram related to the pressure-induced molecular dissociation and metallization and to improve the treatment of electronic correlation by developing algorithms based on Quantum Monte Carlo (QMC) methods.
**More: Quantum Monte Carlo Simulation of Hydrogen at High Pressure …**

## Transitions in Turbulent Rotating Thermal Convection

Scientists investigate the influence of temperature-dependent fluid properties (non-Oberbeck-Boussinesq effects) and rotation through direct numerical simulations for various fluids and a wide range of rotation rates to get closer to the understanding of realistic flows in nature and in engineering.
**More: Transitions in Turbulent Rotating Thermal Convection …**

## Observing the Bacterial Membrane Through Molecular Modeling and Simulation

One strategy to develop new and more efficient antibiotics that are less prone to generate resistance is to target and destabilize the bacterial membrane. In this context, investigating the physical and chemical principles governing the nature of bacterial membranes is of fundamental importance for understanding the functional role of lipid bilayers.
**More: Observing the Bacterial Membrane Through Molecular Modeling and Simulation …**

## Numerical Simulation of Binary Black Hole and Neutron Star Mergers

Scientists from the Albert Einstein Institute in Potsdam/Germany used HPC system SuperMUC to study the dynamics of compact-object binaries, i.e. neutron stars and black holes, and improve our understanding of strong gravity.
**More: Numerical Simulation of Binary Black Hole and Neutron Star Mergers …**

## Simulation of the Unsteady Flow Around the Stratospheric Observatory For Infrared Astronomy (SOFIA)

To further improve the pointing stability and observation quality of the IR-telescope of an airborne stratospheric observatory, researchers investigate passive flow control methods by means of computational fluid dynamics simulations on HPC system SuperMUC of the LRZ Garching.
**More: Simulation of the Unsteady Flow Around the Stratospheric Observatory For Infrared Astronomy (SOFIA) …**

## Project Vlasiator: Global Hybrid-Vlasov Simulation for Space Weather

The HPC resources of HLRS Stuttgart enabled the world’s first global runs of the near-Earth space using a hybrid-Vlasov approach at highest resolutions.
**More: Project Vlasiator: Global Hybrid-Vlasov Simulation for Space Weather …**

## A lattice QCD Calculation of the Leading Order Hadronic corrections to g − 2 of the Muon

Researchers from Wuppertal and Marseilles are using lattice quantum chromodynamics (QCD) to calculate contributions of the strong force to the anomalous magnetic moment of the muon, a heavier cousin of the electron.
**More: A lattice QCD Calculation of the Leading Order Hadronic corrections to g − 2 of the Muon …**

## Heavy Ion Phenomenology Form Lattice Simulations

A team of physicists used JSC supercomputer JUQUEEN to study the energy density, entropy, specific heat and pressure of quark gluon plasma, starting from a high temperature at its creation to a low temperature where the plasma actually freezes. Their goal: to identify the plasma's break-up point, i. e. the point when the plasma freezes and its matter is transformed into subatomic particles.
**More: Heavy Ion Phenomenology Form Lattice Simulations …**

## Project HRPIPE, Direct Numerical Simulation of Pipe Flow at High Reynolds Numbers

Researchers from the Delft University of Technology used HLRS supercomputer Hermit to study turbulent pipe flow, which is--from an engineering point of view--one of the most important flow geometries because of its wide range of technical applications.
**More: Project HRPIPE, Direct Numerical Simulation of Pipe Flow at High Reynolds Numbers …**

## Project Plasmonic Ligand-Stabilized Gold Nanoclusters

A detailed understanding of the emergence of collective excitations in metallic nanostructures has for long been an open challenge in solid-state chemistry and physics. Through the computational studies of ligand stabilized gold nanoclusters that are defined “to the molecular precision”, i.e, by exact composition and structure, scientists aimed at break-throughs in mocroscopic understanding of the “birth of a plasmon” in nanoscale noble metal clusters.
**More: Project Plasmonic Ligand-Stabilized Gold Nanoclusters …**

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

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

## 2+1+1 Lattice QCD Calculations With HEX Smeared Clover Fermions

Supercomputer resources of GCS enable physicists to solve the equations of QCD on a large enough and simultaneously fine enough lattice to accurately compute the effects of the charm quark and predict the masses of short-lived particles it is contained in.
**More: 2+1+1 Lattice QCD Calculations With HEX Smeared Clover Fermions …**

## What Heats the Beautiful One Million Degree Hot Solar Corona?

Scientists at the Max Planck Institute for Solar System Research in Göttingen employed a three-dimensional numerical model on GCS supercomputer Hermit of HLRS Stuttgart to investigate the heating process of the highly structured and dynamic corona.
**More: What Heats the Beautiful One Million Degree Hot Solar Corona? …**

## Direct Numerical Simulation of the Boundary Layers Transition and Interaction at the Entrance of a Plane Channel

Understanding the mechanisms involved in the turbulent transition in boundary layers is crucial for many engineering domains. The instabilities that develop in to those flows are highly non-linear and unsteady. Scientists used GCS supercomputers to study the turbulent transition of the boundary layers developing at the entrance of a plane channel.
**More: Direct Numerical Simulation of the Boundary Layers Transition and Interaction at the Entrance of a Plane Channel …**

## Multi-Scale Supercomputer Simulations of the Birth of Stars

An international team of scientists used GCS supercomputing resources to study the evolution and fragmentation of clouds into stars.
**More: Multi-Scale Supercomputer Simulations of the Birth of Stars …**