FOR 5595 – Oil–Refrigerant Multiphase Flows in Gaps with Moving Boundaries – Innovative Microscopic and Macroscopic Approaches for Experimentation, Modelling, and Simulation
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Nigel Hoare auf Unsplash
The DFG Research Unit FOR 5595 is developing a validated computational model for multiphase flows of oil–refrigerant mixtures in narrow gaps with moving boundaries, as found in rotary displacement machines. To achieve this, the researchers combine innovative microscopic and macroscopic approaches in both experimental and simulation studies.
A laser-optical measurement technique captures spatially and temporally resolved flow structures such as bubble and mist flows, which are strongly influenced by the physical properties of the fluid mixtures and the operating conditions.
For the first time, these thermophysical properties are being systematically measured and incorporated into precise models that can also be applied to other asymmetric mixtures. The results will enable the improved design of energy-efficient rotary displacement machines for oil–refrigerant mixtures and will contribute to reducing resource consumption.
Contact: Prof. Dr.-Ing. Markus Richter | Participating Institutions:
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More Information: FOR 5595
FOR 5250 – Mechanism-Based Characterisation and Modelling of Permanent and Bioresorbable Implants
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Quang Tri NGUYEN auf Unsplash
The DFG Research Unit 5250 is developing comprehensive solutions for the fabrication, characterisation, and simulation-based design of additively manufactured implants in dental, oral, and maxillofacial medicine. The aim is to enable patient-specific implants with optimal functionality – ranging from long-lasting titanium implants to bioresorbable magnesium ones.
The interdisciplinary team of experts in materials science, medicine, and engineering employs innovative in vivo, in vitro, and in silico methods to realistically represent biological, mechanical, and corrosive processes and to advance the efficient development of future implants.
Contact: Prof. Dr.-Ing. Frank Walther | Participating Institutions:
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More Information: FOR 5250
FOR 5620 – Simulation-Based Design for Manufacturing of Load-Optimised Freeform Components Using Laser Metal Deposition (DED-LB/M)
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Sergio Rota auf Unsplash
The DFG Research Unit FOR 5620 explores new approaches for producing load-optimised freeform components through robot-based laser metal deposition (DED-LB/M) using wire feedstock. The aim is to achieve a deep understanding of the entire process chain – from simulation to post-processing – in order to develop lightweight, topology-optimised structures.
These innovative components combine maximum strength with minimal material use, thereby contributing to a resource-efficient and forward-looking manufacturing process.
Contact: Prof. Dr.-Ing. Andreas Ostendorf | Participating Institutions:
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More Information: FOR 5620
