60 https://www.uni-bremen.de/en/priority-programme-2289-hetero-aggregates/research The priority program Design of synergies in tailor-made mixtures of heterogeneous powders aims at the development of application-oriented particle systems through the controlled, process-reliable and controllable adjustment of particulate hetero-contacts. en University of Bremen Wed, 14 Oct 2026 21:10:34 +0200 Wed, 14 Oct 2026 21:10:34 +0200 University of Bremen content-402330 Wed, 23 Oct 2024 15:39:11 +0200 https://www.uni-bremen.de/en/priority-programme-2289-hetero-aggregates/research#c402330 <p>The main technical goals and development areas of the priority programs are</p> <ul> <li>the development of sophisticated methods for the characterization of hetero-aggregates in disperse systems,</li> <li>the development of suitable process diagnostics that feature component-specific detection,</li> <li>the derivation of proper process descriptions and simulations with validated models (particle, continuum and/or population based) for mixtures of <1 µm sized particle systems, and</li> <li>the establishment of efficient model couplings (<abbr>for example</abbr>  <abbr title="Discrete Element Method">DEM</abbr>-<abbr title="Computational Fluid Dynamics">CFD</abbr>) for the ab-initio gas phase process design.</li> </ul> <p>These goals aim to a fundamental understanding of the relevant mixing phenomena on length scales in the sub-micrometre range and their modelling as well as transfer into applications of tailored hetero-aggregated particulate systems and aggregation processes.</p> <p>The processes for designing hetero-aggregates are divided into the formulation (from existing particle systems) and the production (from molecules and their reaction products) of the hetero-aggregates. The solely focus of the programme is on processes in the gas phase, where both adhesion forces and specific charge distributions of particles play an important role. Gas-phase aggregation processes can be implemented with different methods and reactor concepts.</p> Content