Dear Colleagues,

This contribution shall present new trends and insights in the application of flow simulations and flow measurement technology in chemical process engineering.

Both simulation and measurement technology have shown great developments and progress on their own, but in combination, especially, there are many synergies and connecting points. These topics will be explored in this Special Issue.

With this field, multiple aspects of modern engineering and sustainable chemical processes are addressed. Innovative flow simulations and up-to-date flow measurement technologies deliver chemical process optimization, improvements in mixing, savings of large amounts of thermal and electrical energy, minimization of resource and educt consumption as well as undesirable secondary products and therefore environmental impact, CO₂ footprint, maximization of selectivities and yields, process safety, as well as economic efficiency and competitiveness of chemical products. This is precisely why the topics of this Special Issue are so important in regard to widespread chemical, mixing, and process engineering operations.

Flow simulation now seems to be present almost everywhere as a frequently used “standard tool” in companies for design purposes, parameter studies, virtual simulations of operational conditions, troubleshooting approaches, and customer-support services. In this context, however, awareness must be raised that, especially in the case of complex geometries and multiple phases, models that have been verified and validated experimentally by modern flow measuring technology are required to provide significant meaningfulness of the simulations in order to go beyond the status of “colorful simulation images”.

Rapidly increasing computing capacities of conventional computers lead to the spread of the technologies mentioned and new approaches to solution algorithms for simulations on the one hand, and, in particular, non-contact measurement technology on the other hand, resulting in progress and exciting developments in both areas.

Panta rhei – everything flows.

We look forward to your contributions!

Prof. Dr. Heyko Jürgen Schultz
Prof. Dr. Maurizio Barbato
Guest Editors

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• fluid flow
• particle flow
• mixing
• computational fluid dynamics (CFD)
• discrete element method (DEM)
• particle image velocimetry (PIV)
• laser induced fluorescence (LIF)
• shadowgraphy
• chemical process engineering
• heat and mass transfer