M.Sc. Andreas Preusche

Contact

work +49 6151 16-28906
fax +49 6151 16-28900

Work L1|08 111
Otto-Berndt-Str. 3
64287 Darmstadt

Fuel injection in the transcritical and supercritical regime is of increasing importance. Applications of interest are supercharged internal combustion engines or gas turbine combustors operating at increased pressure levels. Approaching the transcritical and supercritical regime the dynamic evolution of drops and jets towards a diffusive interface is not well understood. This lack of knowledge so far impeded the development of physically consistent evaporation models. This project aims to provide insights into drop thermodynamics under transcritical conditions. Drop dynamics are being investigated using laser spectroscopic measurement techniques, such as Raman scattering and laser induced fluorescence. Based on these experimental results, evaluation of different evaporation models is carried out in cooperation with ITLR at University Stuttgart to improve modelling for simulations.

Publications

Bork, B.; Preusche, A.; Weckenmann, F.; Lamanna, G.; Dreizler, A. (2016): Measurement of species concentration and estimation of temperature in the wake of evaporating n-heptane droplets at trans-critical conditions. In Proceedings of the Combustion Institute. DOI: 10.1016/j.proci.2016.07.037.

Ouedraogo, Yun; Gjonaj, Erion; Weiland, Thomas; Gersem, Herbert De; Steinhausen, Christoph; Lamanna, Grazia et al. (2017): Electrohydrodynamic simulation of electrically controlled droplet generation. In International Journal of Heat and Fluid Flow 64, pp. 120–128. DOI: 10.1016/j.ijheatfluidflow.2017.02.007.

Lamanna, G., Weckenmann F., Steinhausen, C., Weigand, B., Bork, B., Preusche, A., Dreizler, A., Stierle R., Groß J.: Laboratory experiments of high-pressure fluid drops. AAIA Progress Series, High Pressure Flows for Propulsion Applications, 2017.

Steinhausen, C., Lamanna, G., Weigand, B., Stierle, R., Groß, J., Preusche, A., Dreizler, A.: Experimental Investigation of Droplet Injections in the Vicinity of the Critical Point: A comparison of different model approaches. 28th Conference on Liquid Atomization and Spray Systems, Valencia, Spain, 2017.