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Structure and Kinematics of the Vortex System in Axial Turbomachines

Taubert, Paul ; Pelz, Peter F. (2022):
Structure and Kinematics of the Vortex System in Axial Turbomachines. (Publisher's Version)
In: FAN 2018 - Proceedings of the International Conference on Fan Noise, Aerodynamics, Applications and Systems : 18. - 20. April 2018,
Darmstadt, International Conference on Fan Noise, Aerodynamics, Applications and Systems, Darmstadt, Germany, 18.-20.04.2018, DOI: 10.26083/tuprints-00021355,
[Conference or Workshop Item]

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Item Type: Conference or Workshop Item
Origin: Secondary publication service
Status: Publisher's Version
Title: Structure and Kinematics of the Vortex System in Axial Turbomachines
Language: English
Abstract:

This investigation models the kinematics of the vortex system of an encased axial turbomachine at part load and overload applying analytical methods. So far, the influence of the casing and the tip clearance on the kinematics was solved separately. The vortex system is composed of a hub, bound and tip vortices. For the nominal operating point φ ≈ φ(opt) and negligible induction, the tip vortices transform into a screw. For part load operation φ → 0, the tip vortices wind up to a vortex ring, i.e. the pitch of the screw vanishes. For overload operation φ → ∞, the vortex system of the turbomachine forms a horseshoe, i.e. the pitch of the screw becomes infinite. Both, hub and tip vortices, are semi-infinite, straight vortex filaments.

Book Title: FAN 2018 - Proceedings of the International Conference on Fan Noise, Aerodynamics, Applications and Systems : 18. - 20. April 2018
Place of Publication: Darmstadt
Collation: 10 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering > Institute for Fluid Systems (FST)
Event Title: International Conference on Fan Noise, Aerodynamics, Applications and Systems
Event Location: Darmstadt, Germany
Event Dates: 18.-20.04.2018
Date Deposited: 13 May 2022 13:55
Last Modified: 13 May 2022 13:55
DOI: 10.26083/tuprints-00021355
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-213558
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21355
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