Research
Research topics
Temperature-Sensitive Paint (TSP)
- Klein, C., Risius, S., Henne, U., Ondrus, V.: “Determination of the response time of TSP in cryogenic conditions.” In: AIAA Scitech Forum 2024, Orlando, FL, USA, 2024 https://arc.aiaa.org/doi/10.2514/6.2024-1093
- European Transonic Windtunnel (ETW): “High Speed Wind Tunnel Test of a Laminar Configuration Bizjet (HiLamBiz) featuring the application of Temperature Sensitive Paint (TSP).” https://www.etw.de/publications/learn-more-movie/tsp-measurements
- Risius, S.: “Development of a time-resolved quantitative surface-temperature measurement technique and its application in short-duration wind tunnel testing”, PhD thesis at the Georg-August-University Göttingen, 2018 https://ediss.uni-goettingen.de/handle/11858/00-1735-0000-002E-E44D-A
Determination of heat transfer
- Liu, T., Risius, S.: “In-situ calibration for temperature-sensitive-paint heat-flux measurement on a finite base.” International Journal of Heat and Mass Transfer, vol 137, 2019 https://doi.org/10.1016/j.ijheatmasstransfer.2019.06.021
- Risius, S., Beck, W. H., Klein, C., Wagner, A.: “Determination of heat transfer into a wedge model in a hypersonic flow using temperature-sensitive paint.” Experiments in Fluids 58:117, 2017 https://doi.org/10.1007/s00348-017-2393-z
Influence of surface excrescences on laminar-turbulent transiton
- Risius, S., Costantini, M., Klein, C.: “Influence of deep gaps on laminar–turbulent transition in two‐dimensional boundary layers at subsonic Mach numbers.” Experiments in Fluids 64:174, 2023 https://doi.org/10.1007/s00348-023-03708-6
- Costantini, M., Risius, S., Klein, C.: “Step-induced transition in compressible high Reynolds number flow.” Flow: Applications of Fluid Mechanics, 2 (E33), 1-15, 2022 https://doi.org/10.1017/flo.2022.21
- Costantini, M., Risius, S., Koch, S., Fuchs, C., Gerhard, U., Hein, S., Klein, C.: “Experimental study of bump effects on boundary-layer transition in compressible high Reynolds number flow.” Experimental Thermal and Fluid Science, vol 106, 234-254, 2019 https://doi.org/10.1016/j.expthermflusci.2019.04.027
- Dimond, B., Costantini, M., Risius, S., Fuchs, C., Klein, C.: “Experimental analysis of suction on step-induced boundary-layer transition.” Experimental Thermal and Fluid Science, vol 109 (109842), 2019 https://doi.org/10.1016/j.expthermflusci.2019.109842
Measurement in transonic wind tunnels
- van Hinsberg, N., Henne, U., Weiss, A., Risius, S., Klein, C. (2023) “Temperature sensitive paint measurement in ETW for investigation of the natural laminar flow on an innovative forward swept wing.” In: Dt. Luft- und Raumfahrt Kongress DLRK 2023 (0083), Stuttgart, Germany, 2023 https://elib.dlr.de/200167/
- Risius, S., Costantini, M., Koch, S., Hein, S., Klein, C.: “Unit Reynolds number, Mach number and pressure gradient effects on laminar-turbulent transition in two-dimensional boundary layers.” Experiments in Fluids 59:86, 2018 https://doi.org/10.1007/s00348-018-2538-8
- Styles, A. Risius, S.: “Assessment and validation of aerodynamic performance results for a Natural Laminar Flow transonic wing tested in cryogenic conditions via simulation of turbulent wedges in CFD.” In: Royal Aeronautical Society Applied Aerodynamics Conference 2016, Bristol, England, 2016 https://elib.dlr.de/105719/
Atmospheric turbulence and clouds
- Risius, S., Xu, H., Di Lorenzo, F., Xi, H., Siebert, H., Shaw, R. A., Bodenschatz, E.: “Schneefernerhaus as a mountain research station for clouds and turbulence.” Atmos. Meas. Tech., vol 8 (8), 3209-3218, 2015 https://doi.org/10.5194/amt-8-3209-2015
- Deutschlandfunk: “Mini-Tornados im Himmelreich.” https://www.deutschlandfunk.de/mini-tornados-im-himmelreich-100.html