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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. (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-00021354,
[Conference or Workshop Item]

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Item Type: Conference or Workshop Item
Origin: Secondary publication service
Status: Publisher's Version
Title: Extended Scaling Method for Nonsimilarity in Reynolds Number, Stagger Angle and Blade Number
Language: English
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.

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: 12 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 13:50
Last Modified: 13 May 2022 13:51
DOI: 10.26083/tuprints-00021354
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-213543
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21354
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