Development of SLD Capabilities in the RTA Icing Wind Tunnel

Paper #:
  • 2017-01-9001

Published:
  • 2017-06-29
DOI:
  • 10.4271/2017-01-9001
Citation:
Ferschitz, H., Wannemacher, M., Bucek, O., Knöbel, F. et al., "Development of SLD Capabilities in the RTA Icing Wind Tunnel," SAE Int. J. Aerosp. 10(1):12-21, 2017.
Pages:
10
Abstract:
RTA Rail Tec Arsenal Fahrzeugversuchsanlage GmbH has focused on the simulation of in-flight icing conditions since 2012. Following the successful implementation of the icing conditions specified in EASA CS-25 Appendix C, it was expected that the facility could also be used to simulate the SLD conditions required by EASA CS-25 Appendix O. This paper sets forth theoretical considerations concerning the selection of suitable nozzles and their operation in the existing facility. The transport of large droplets through the contraction nozzle was simulated using a CFD program. The results then served as a basis for deriving secondary droplet breakup. The validations carried out confirm the theoretical considerations and identify potential limits and open research questions.
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