This image shows Anne Geppert

Anne Geppert

Dr.-Ing.

Research associate
Institute of Aerospace Thermodynamic

Contact

+49 711 685 62413
+49 711 685 62317

Pfaffenwaldring 31
70569 Stuttgart
Germany
Room: 1-123

Subject

Droplet dynamics: Analytical and experimental investigation of drop-wall interactions, drop-liquid interactions, and atomization processes

Research collaborations :

Droplet Interaction Technologies *DROPIT*(coordinator for experimental work)

  1. Geppert, A. K., Stober, J. L., Steigerwald, J., Schulte, K., Tonini, S., & Lamanna, G. (2024). Analyzing the early impact dynamics of single droplets impacting onto wetted surfaces. Physics of Fluids, 36(1), Article 1. https://doi.org/10.1063/5.0179716
  2. Palmetshofer, P., Geppert, A. K., Steigerwald, J., Arcos Marz, T., & Weigand, B. (2024). Thermocapillary central lamella recess during droplet impacts onto a heated wall. Scientific Reports, 14(1), Article 1. https://doi.org/10.1038/s41598-024-51382-3
  3. Geppert, A. K., & Lamanna, G. (2023). Towards spatial and time-resolved film thickness measurements during droplet impact onto thin liquid films. 32nd Conference on Liquid Atomization & Spray Systems, ILASS Europe 2023, 4-7 Sept 2023, Napoli, Italy.
  4. Geppert, A. K., & Weigand, B. (2023). Spreading dynamics during single droplet impact onto a free-standing cubic surface element. 11th International Conference on Multiphase Flow, ICMF 2023, Kobe, Japan, April 2-7, 2023.
  5. Geppert, A. K., Foltyn, P., & Weigand, B. (2022). Effect of edge length and wettability on droplet impact onto a stand-alone cubic pillar. 31th Conference on Liquid Atomization and Spray Systems, ILASS–Europe 2022, Tel-Aviv (Virtual). https://ilass2022.net.technion.ac.il/files/2022/09/Effect-of-edge-length-and-wettability-on-droplet-impact-onto-a.pdf
  6. Lamanna, G., Geppert, A. K., Bernard, R., & Weigand, B. (2022). Drop impact onto wetted walls: an unsteady analytical solution for modelling crown spreading. Journal of Fluid Mechanics, 938, A34. https://doi.org/10.1017/jfm.2022.69
  7. Geppert, A. K., Santini, M., Lamanna, G., Cossali, G. E., & Weigand, B. (2022). Scientific Highlights of the International Research Training Group (GRK 2160/2) “Droplet Interaction Technologies” (DROPIT). 31th Conference on Liquid Atomization and Spray Systems, ILASS-Europe 2022, Tel-Aviv (Virtual).
  8. Ren, W., Foltyn, P., Geppert, A. K., & Weigand, B. (2021). Air entrapment and bubble formation during droplet impact onto a single cubic pillar. Scientific Reports, 11(1), Article 1. https://doi.org/10.1038/s41598-021-97376-3
  9. Steigerwald, J., Geppert, A. K., & Weigand, B. (2021). Numerical study of drop shape effects in binary drop film interactions for different density ratios. 15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021, Edinburgh, UK.
  10. Liu, Y., Geppert, A. K., Chu, X., & Weigand, B. (2021). Simulation of an annular liquid jet with a coaxial supersonic gas jet in a medical inhalter. Atomization and Sprays, 31(9), Article 9. https://doi.org/10.1615/AtomizSpr.2021037223
  11. Geppert, A., Bernard, R., Weigand, B., & Lamanna, G. (2020). Analytical Model for Crown Spreading During Drop Impact onto Wetted Walls: Effect of Liquids Viscosity on Momentum Transfer. In G. Lamanna, S. Tonini, G. E. Cossali, & B. Weigand (Eds.), Droplet Interactions and Spray Processes. Fluid Mechanics and Its Applications, vol. 121 (Vol. 121, pp. 177–190). Springer, Cham. https://doi.org/10.1007/978-3-030-33338-6_14
  12. Geppert, A. K. (2019). Experimental investigation of droplet wall-film interaction of binary systems [Dissertation]. In Thermodynamik. Verlag Dr. Hut.
  13. Terzis, A., Kirsch, M., Vaikuntanathan, V., Geppert, A., Lamanna, G., & Weigand, B. (2019). Splashing characteristics of diesel exhaust fluid (AdBlue) droplets impacting on urea-water solution films. Experimental Thermal and Fluid Science, 102, 152--162.
  14. Lamanna, G., Geppert, A., & Weigand, B. (2019). On the effect of a thin liquid film on the crown propagation in drop impact studies. ILASS-Europe 2019, 29th Conference on Liquid Atomization and Spray Systems, Paris, France.
  15. Steigerwald, J., Geppert, A., Ertl, M., Bernard, R., Vaikuntanathan, V., Lamanna, G., & Weigand, B. (2018). Direct Numerical Simulation of One- and Two-Component Droplet Wall-Film Interactions within the Crown-Type Splashing Regime. ICLASS 2018, 14th Triennal International Conference on Liquid Atomization and Spray Systems, Chicago, IL, USA.
  16. Bernard, R., Geppert, A., Vaikuntanathan, V., Lamanna, G., & Weigand, B. (2018). On the Scaling of Crown Rim Diameter during Droplet Impact on Thin Wall-Films. ICLASS 2018, 14th Triennal International Conference on Liquid Atomization and Spray Systems.
  17. Bernard, R., Foltyn, P., Geppert, A., Lamanna, G., & Weigand, B. (2017). Generalized analysis of the deposition/splashing limit for one- and two-component droplet impacts upon thin films. 28th Conference on Liquid Atomization and Spray Systems, 6-8 September 2017, Valencia, Spain, Valencia, Spain.
  18. Geppert, A., Terzis, A., Lamanna, G., Marengo, M., & Weigand, B. (2017). A benchmark study for the crown-type splashing dynamics of one- and two-component droplet wall-film interactions. Experiments in Fluids, 58(12), Article 12. https://doi.org/10.1007/s00348-017-2447-2
  19. Geppert, A., Chatzianagnostou, D., Meister, C., Gomaa, H., Lamanna, G., & Weigand, B. (2016). Classification of Impact Morphology and Splashing/Deposition Limit for n-Hexadecane. Atomization and Sprays, 26(10), Article 10. https://doi.org/10.1615/AtomizSpr.2015013352
  20. Geppert, A., Terzis, A., Lamanna, G., Marengo, M., & Weigand, B. (2016). On the Formation of Secondary Droplets from Crown Bottom Breakdown during Drop Impact on Very Thin Films. 27th Annual Conference on Liquid Atomization and Spray Systems, Brighton, UK, Brighton, UK.
  21. Geppert, A., Strcbac, A., Marengo, M., Lamanna, G., & Weigand, B. (2015). Two-Component Droplet Wall-Film Interaction: Crown Morphology as a Function of Liquids Viscosity and Surface Tension. ICLASS 2015, 13th International Conference on Liquid Atomization and Spray Systems, Tainan, Taiwan.
  22. Geppert, A., Gomaa, H., Meister, C., Lamanna, G., & Weigand, B. (2014). Droplet Wall-Film-Interaction: Impact Morphology and Splashing/Deposition Boundary of Hyspin/ n-Hexadecane Two-Component System. ILASS-Americas, 26th Annual Conference on Liquid Atomization and Spray Systems, Portland, Oregon, USA.
  23. Geppert, A., Greif, F., Lamanna, G., & Weigand, B. (2013). Phenomenology of Two-Component Droplet-Wall Film-Interaction. ILASS-Europe, 25th European Conference on Liquid Atomization and Spray Systems, Chania, Greece.
To the top of the page