COMPUTATIONAL AND SCIENTIFIC ENGINEERING

Computational and Scientific Engineering

Principal Investigator: 1) Axel Klawonn, 2) Oliver Rheinbach , 1) Mathematical Institute of the University of Cologne (Germany), 2) Institute of Numerical Analysis and Optimization, Technische Universität Bergakademie Freiberg (Germany)

HPC Platform used: JUQUEEN of JSC

Local Project ID: hfg01

The project EXASTEEL is concerned with parallel implicit solvers for multiscale problems in structural mechanics discretized using finite elements. It is focussed on modern high strength steel materials. The higher strength and better ductility of these materials largely stems from the carefully engineered grain structure at the microscale. The computational simulations used therefore take into account the microstructure, but without resorting to a brute force discretization (which will be out of reach for the foreseeable future). The researchers' approach combines a computational multiscale approach well known in engineering (FE) with state-of-the-art parallel scalable iterative implicit solvers developed in mathematics. 

Computational and Scientific Engineering

Principal Investigator: Christian Hasse , Numerical Thermo-Fluid Dynamics, Technische Universität Bergakademie Freiberg (Germany)

HPC Platform used: SuperMUC of LRZ

Local Project ID: pr83xa

The direct numerical simulation performed in the course of this project – run on SuperMUC at LRZ – investigated a temporally evolving non-premixed syngas jet flame. Results of this simulation were used to validate a recently published set of extended model equations for the reaction zone dynamics in non-premixed combustion. Furthermore, the dataset was used to analyze the importance of curvature induced transport phenomena. Regions could be identified where curvature has a significant impact on the flame structure.

Computational and Scientific Engineering

Principal Investigator: Christian Hasse , Numerical Thermo-Fluid Dynamics, Technische Universität Bergakademie Freiberg (Germany)

HPC Platform used: Hornet of HLRS

Local Project ID: ICECCV

A numerical research project, run on Hornet of HLRS, focused on the grid of internal combustion (IC) engines in the vicinity of the intake valve and its effect on the simulation results. The overall goal was to develop a methodology for a quantitative comparison of different results in terms of the intake jet as well as the identification of crucial mesh regions.