Institute for Digital Materials Research
Kooperative Promotion: Simulation der Flüssigkeitspropagation in Membranstrukturen (zusammen mit der Sartorius GmbH)
Drops on porous substrate (without evaporation):
- Radial penetration of a droplet into porous structures (Radial Wicking)
- Experiment with solid structure and known wetting angle to calibrate the model parameter
- Parameter study: variation of structure and wetting properties
Contact angle hysteresis:
- Investigation of Advancing and Receeding Contact Angle
- Contact angle hysteresis on surface with macroscopic surface roughness
- Experiments to determine surface roughness and contact angle hysteresis
- Microscopic resolution of surface roughness ==> investigation of pinning effects
- Parameter study: variation of surface roughness and wetting properties
- Closed surface studies
Contact angle hysteresis with evaporation:
- Contact angle hysteresis on surface with macroscopic surface roughness and evaporation
- Microscopic resolution of surface roughness with additional evaporation
- Experiments to determine the evaporation rate of a droplet
- Comparison of contact angle hysteresis: neglect/consideration of evaporation
- Parameter study: variation of surface roughness and wetting properties
- Closed surface studies
Droplets on porous substrate with evaporation:
- Radial penetration of a droplet into porous structures (Radial Wicking)
- Evaporation
- Comparison of penetration behaviour: neglect/consideration of evaporation/contact angle hysteresis
- Parameter study: variation of structure and wetting properties (structures and wetting properties)
- Transfer to current issues (Sartorius)