@inproceedings{,
    author = {Händel, David; Niehuis, Reinhard; Klausmann, Jan},
    title = {Aerodynamic Investigations of an Advanced VIGV Design of Adjustable Geometry for Very High Flow Turning},
    editor = {},
    booktitle = {Proceedings of ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, Volume 2A: Turbomachinery : Montreal, Quebec, Canada, June 15–19, 2015},
    series = {},
    journal = {},
    address = {},
    publisher = {},
    edition = {},
    year = {2015},
    isbn = {},
    volume = {},
    number =  {},
    pages = {1-10},
    url = {http://proceedings.asmedigitalcollection.asme.org/data/Conferences/ASMEP/85111/V02AT37A013-GT2015-42166.pdf},
    doi = {},
    keywords = {},
    abstract = {On the basis of experimental results the new design of a Variable
Inlet Guide Vane (VIGV), as can be used for the control and
regulation in multishaft compressors, is presented. Main goal of
this investigation is a significant increase of the operating range
and a reduction of the total pressure loss compared to a currently
used basic design. For both designs 2D-cascades were build for
detailed measurements in the High-Speed Cascade Wind Tunnel
at the Institute of Jet Propulsion at the Universit¨at der Bundeswehr
M¨unchen. The basic design exhibits a symmetric profile
with only one segment. In contrast to that the new VIGV
design consists of two symmetric vane segments which are arranged
pivotable to each other. This provides the advantage of
a symmetric profile for a fully opened VIGV associated with a
low-loss level. For guidance of the flow, both vane segments can
be rotated. Hence, the turning of the flow is split onto two segments.
This avoids a huge flow separation on the suction side for
high turning angles (Db > 30) which is linked with a strong and
abrupt loss increase. Due to the design, the new VIGV exhibits
a gap between the two vane segments. Results with opened and
sealed gap are presented and discussed. Using a sealing between
the segments, a reduction of the profile loss could be detected for
all investigated operating conditions. Even without a sealing in
the gap, the ”low-loss working range” is significantly increased.
In addition, it is depicted that the presented results are valid for
varying inflow velocities. This broadens the usability of the outcomes.
Concluding, it is shown that all aims are achieved. Using the new VIGV design with sealing the low-loss working range
can almost be doubled (Db > 55) and the total pressure loss decreases
in every working condition compared to the basic design},
    note = {},
    institution = {Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik, LRT 12 - Institut für Strahlantriebe, Professur: Niehuis, Reinhard},
    
    
}