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Industrial use cases

Academic use cases

New Tier-1 projects

Electronic properties of defect complexes in Σ3 CIGS grain boundaries

Date: 01.11.2015
  • Promotor(s): Rolando Saniz
  • Institution(s): UAntwerp
  • Domain(s): Physics
Cu(In,Ga)Se2 [CIGS] thin films are used as light absorber layers in photo-voltaic cells because of their exceptionally high absorption coefficient. Defect complexes at grain boundaries in these films are thought to play a critical role in the efficiency of the cells, but their exact effect is controversial. It is important to clarify this in order to increase further their efficiency and to compete with the more expensive silicon-based technologies. Here we will study several of the most commonly observed defects in CIGS thin films, using current state-of-the-art first-principles computational methods, and determine how they affect the electronic properties of the absorber layers and shed important light on how to improve them.

Computational Fluid Dynamics based design of 3D reactors (III): enhanced reactors

Date: 01.11.2015
  • Promotor(s): Pieter Reyniers
  • Institution(s): UGent
  • Domain(s): Chemistry , Technology
Several large scale chemical processes accommodate (enhanced) tubular reactors suspended in large gas-fired furnaces. Over the last decades, extensive optimization of this technology has been realized, mostly based on trial-and-error and simple models. Current computational power allows for the high-resolution simulation of these enhanced tubular reactors in order to assess the influence of the modified reactor geometry on heat transfer, pressure drop and consequently product distribution. This project focusses on the 3D-CFD based optimization of steam cracking of hydrocarbons, the main process for the production of important building blocks for the chemical industry, e.g. ethene and propene.

Advanced Computational Fluid Dynamics (CFD) Simulations of Wind Turbine Rotors

Date: 01.11.2015
  • Promotor(s): Nikolaos Stergiannis
  • Institution(s): VUB
  • Domain(s): Technology
Deeper knowledge of the wind behaviour, around the blades and downstream of wind turbines, will aid the optimization of the design process from aerodynamics to the final wind farm layout. Computational Fluid Dynamics is a promising tool that can be employed nowadays even to complex industrial applications. These methods can efficiently capture the multiphysics of flow, with a continuous perspective of reduction on their final cost. Still, there are several challenges that need to be overcome. For the case of wake prediction it is more efficient to use simplified models to represent the presence of the rotor (such as Actuator Disc Models). However, the effects due to neglect of the physics, particularly in the near region of the wake, remains an open question. In an attempt to describe better these effects the 4th blind test cases organized by NOWITECH and NORCOWE will be further investigated. A comprehensive study on the rotor aerodynamics and the near wake region of two wind turbines will be done, using advanced CFD methods, such as sliding mesh to perform unsteady simulations of the two wind turbine geometries including their nacelles and towers.

CORDEX.be: Combining Regional Downscaling Expertise in Belgium: CORDEX and beyond. Part II

Date: 01.11.2015
  • Promotor(s): Hendrik Wouters , Sam Vanden Broucke
  • Institution(s): KU Leuven
  • Domain(s): Earth sciences
The CORDEX.be project aims to: (1) contribute to the CORDEX project on the European domain (with 12-km model resolution), (2) to create a Belgian micro ensemble, called CORDEX.be. This micro ensemble will consist of high resolution simulations (2-4 km) and will undergo a stringent uncertainty analysis to estimate uncertainties. (3) To develop four local impact case studies, related to urban heat effects, storms surges, impact on crop production and changes in biogenic emissions from vegetation. Ultimately, by combining existing and ongoing research activities in the domain of regional climate modeling, the CORDEX.be project aims to create a coherent scientific basis for future climate services in Belgium.