A7 - Plasma AerodynamicPIV MeasurementParticle Image Velocimetry (PIV) measurements showing the |
Public research activities
"Mobile plasma workshop" for high school students finished
The last working step for the recent project of public relations is completed. The plasma truck, namely the mobile workshop for students, addresses physics courses within the last two years of school time.
The didactic concept of the workshop is the deepening of existing knowledge by connecting the pre-known physics with concepts from plasma physics. The concept was developed together with the research group physics didactics of Prof. Krabbe at the faculty of physics and astronomy at Ruhr-University Bochum. Within the framework of a Master thesis, Jasmin Schmidt analysed the existing knowledge of the students concerning plasmas. She found that a lot of experiments and descriptions of phenomena were treated during the classes, but have not been connected to plasmas.
Here, the workshop picks up the known experiments and categorises them in a new way. Finally, interested school classes in and around Bochum can book the workshop for a time period of 90 minutes. On the day of the workshop, public relations staff as well as assistant students will visit the school class. A short movie has been produced to introduce the audience to the topic. Finally, the students have the chance to work on the experiments by themselves in small groups. A booklet with information on the experiments leads through the workshop. First groups might try out the workshop after the summer holidays in case that Covid-19 measures are allowing it.
Maike Kai & Marina Prenzel, public relations CRCs
SFB 1316 Summer Meeting
Summer Meeting will be held online
This year's SFB 1316 summer meeting will be held as an online meeting via Zoom on June 30th and July 1st. Among other things, the meeting will focus on the preparation of the second funding phase. The researchers will present their progress in the projects and ideas and for the continuation of the project.
The final agenda has now been set up. If any further changes will be made, the updated agenda will be published here.
- The time schedule and planned presentations for the summer meeting can be found in the agenda.
JSPS Core-to-core program
Patrick Hermanns visit research group in Osaka
I have visited Hamaguchi Laboratories at Osaka University in Japan for 3 months. The lab exchange was funded partially by the CRC-1316 and the JSPS Core-to-core program. The group of Prof. Satoshi Hamaguchi developed a reaction-diffusion-convection simulation for the generation and transport of chemical species in water, introduced by atmospheric-pressure plasma.
During my stay I worked on a multiphase fluid model. The typical flow field of a turbulent atmospheric-pressure plasma jet in direct vicinity of a liquid was modelled by solving a k-epsilon turbulence model. A Volume-of-Fluid (VOF) method was applied for the coupled flow of gaseous and liquid phase. The simulations agree very well with experimental results in the literature. The results from the fluid flow simulations were integrated into the reaction-diffusion-convection equations to evaluate the influence of different flow regimes on the generation and transport of chemical species in the liquid.
In Bochum University, I am working as a PhD-Student within project “B5: 2D-plasma-liquid-solid interfaces – plasma electrolytic oxidation“. The results generated can be useful for this project in regards of chemical species generation inside of liquids. In addition, the fluid flow model is interesting for other groups working with atmospheric-pressure plasmas (e.g. B2: “Self-organization of sub-µm surface structures stimulated by microplasma generated reactive species and short-pulsed laser irradiation“). Summarizing I can say, that I had a very pleasant stay in Osaka, that I personally enjoyed a lot. The cooperation with Hamaguchi Laboratories were very fruitful and everyone was very kind during my stay.
JSPS Core-to-core program
Abdulkadir Yayci visits Japanese colleagues
From October to December 2019, I was able to join the lab of Prof. Satoshi Hamaguchi at the Center for Atomic and Molecular Technologies in Osaka, Japan. My field of research is applied microbiology and my focus is on biocatalytic reactions with non-thermal plasmas. Using numerical simulations, I studied the propagation of plasma-induced reactive species in liquids to gain an insight on the depth of penetration and concentration of these species. This knowledge will help to understand the interaction between plasmas and enzymes that are studied in project B8 of the CRC 1316, specifically to protect the enzymes from inactivation and to drive biocatalysis. The research stay in Japan was very helpful to depen my knowledge for my main research question.