@inproceedings{, author = {Klingl, Stefan; Lecheler, Stefan; Pfitzner, Michael}, title = {Experimental, numerical and theoretical investigations of Tesla turbines}, editor = {}, booktitle = {SUPEHR'19}, series = {}, journal = {}, address = {}, publisher = {}, edition = {}, year = {2019}, isbn = {}, volume = {}, number = {}, pages = {}, url = {}, doi = {}, keywords = {}, abstract = {We use analytical, numerical and experimental methods to characterize the laminar flow inside a Tesla turbine rotor gap. A comparison based on one particular set of operating conditions mutually validates the three approaches. The simplicity of the analytical flow model allows for a cost efficient optimization of the underlying turbine parameters. Performance charts exhibit general trends and serve as a guide for preliminary turbine design and optimization. In terms of the ratio of half the gap width to inlet radius and the ratio of outlet- to inlet radius, the designer of a tesla turbine has to find a compromise between optimal efficiency and optimal power output.}, note = {}, institution = {Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik;Fakultät für Maschinenbau, LRT 10 - Institut für Thermodynamik;MB 5 - Institut für Energie- und Antriebstechnik, Professur: Lecheler, Stefan; Pfitzner, Michael}, }