Challenges in designing very small jet engines - fuel distribution and atomization

Fabian Fuchs (1) , Vitus Meidinger (1) , Nicolas Neuburger (1) , Thorsten Reiter (1) , Magnus Zündel (1) , Andreas Hupfer (1)

1 TUM - Technische Universität Munchen - Technical University Munich - Université Technique de Munich

The contents of this publication deal with experimental and numerical investigation of combustion chambers used in very small jet engines (VSJE) in the thrust range less than 1000N. The Institute for Flight Propulsion of the Technische Universität München (TUM) in cooperation with the research group ‘Hummingbird – TUM Gas Turbines’ operates several test rigs for VSJEs and their components. One special test rig offers the opportunity to investigate standalone combustion chambers without influencing factors of other gas turbine components. During the last years a plurality of investigations on the operating behavior and its characteristics regarding the fuel distribution, atomization and combustion has been carried out. The findings resulting from the experimental investigations are also used as a validation basis for numerical investigations – a precondition for further optimization in designing combustion chambers of VSJE.

Mots clés: very small jet engine; micro gas turbine; fuel atomization; vaporizer stick

Domaines: Mécanique [physics]

Fabian Fuchs, Vitus Meidinger, Nicolas Neuburger, Thorsten Reiter, Magnus Zündel, et al.. Challenges in designing very small jet engines - fuel distribution and atomization. 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Apr 2016, Honolulu, United States. ⟨hal-01891309⟩