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Extended Scaling Method for Nonsimilarity in Reynolds Number, Stagger Angle and Blade Number

Saul, Sebastian ; Pelz, Peter F. (2022)
Extended Scaling Method for Nonsimilarity in Reynolds Number, Stagger Angle and Blade Number.
International Conference on Fan Noise, Aerodynamics, Applications and Systems. Darmstadt, Germany (18.-20.04.2018)
doi: 10.26083/tuprints-00021354
Conference or Workshop Item, Secondary publication, Publisher's Version

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Item Type: Conference or Workshop Item
Type of entry: Secondary publication
Title: Extended Scaling Method for Nonsimilarity in Reynolds Number, Stagger Angle and Blade Number
Language: English
Date: 2022
Place of Publication: Darmstadt
Book Title: FAN 2018 - Proceedings of the International Conference on Fan Noise, Aerodynamics, Applications and Systems : 18. - 20. April 2018
Collation: 12 Seiten
Event Title: International Conference on Fan Noise, Aerodynamics, Applications and Systems
Event Location: Darmstadt, Germany
Event Dates: 18.-20.04.2018
DOI: 10.26083/tuprints-00021354
Corresponding Links:
Origin: Secondary publication service
Abstract:

Acceptance tests for large turbomachines are carried out with the help of small-scaled models on standardized test rigs. This non-similarity, e.g. in Reynolds and Mach number between model and prototype causes an efficiency change. Therefore, the prediction of efficiency change is done by scaling methods. Darmstadt Scaling Method is extended to consider different stagger angles and different blade numbers for axial fans. The method is validated with experimental data and shows good agreements in the stagger angle range from -18° to +12° and Reynolds number ranges of Re = 2.2E6 … 6.5E6 for half- and full-equipped rotors with respect to blade number.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-213543
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Institute for Fluid Systems (FST) (since 01.10.2006)
Date Deposited: 13 May 2022 13:50
Last Modified: 03 Apr 2023 11:36
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21354
PPN: 495522252
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