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Wind Tunnel Measurement of Integral Aerodynamic Forces on a Flettner Rotor at Re = 800 Using a Low-Cost Approach

Bartzsch, Hauke Till and Brenner, Gunter and Gardner, Anthony and Wolf, Christian (2022) Wind Tunnel Measurement of Integral Aerodynamic Forces on a Flettner Rotor at Re = 800 Using a Low-Cost Approach. In: 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, pp. 1-10. 23. STAB-DGLR-Symposium 2022, 2022-11-09 - 2022-11-10, Berlin.

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Official URL: https://www.tu.berlin/index.php?id=27890

Abstract

The lift and drag forces of a Flettner rotor at a Reynolds number of about 800 are experimentally investigated, resulting in the first force measurements on Flettner rotors at Reynolds numbers being this low. Experiments comprise ratios of circumferential rotor velocity to freestream velocity of 0 ≤ α ≲ 4. The instrumentational facility consists of inexpensive off-the-shelf equipment only. The results show an approximately linear growth of lift with circumferential rotor velocity in the range of 1.5 ≲ α ≲ 3.5, followed by a decrease in lift gradient. While the lift magnitude shows good agreement with available data in the range of linear growth for α ≲ 3, at α ≳ 3 it is considerably higher than in previous measurements with higher Reynolds numbers. The experimental setup is well suited for teaching purposes and the demonstration of both flow phenomena and measurement techniques.

Item URL in elib:https://elib.dlr.de/190136/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Vortrag mit Paper
Title:Wind Tunnel Measurement of Integral Aerodynamic Forces on a Flettner Rotor at Re = 800 Using a Low-Cost Approach
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bartzsch, Hauke TillUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brenner, GunterUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gardner, AnthonyUNSPECIFIEDhttps://orcid.org/0000-0002-1176-3447UNSPECIFIED
Wolf, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-9052-7548UNSPECIFIED
Date:November 2022
Journal or Publication Title:23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-10
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDSTABUNSPECIFIEDUNSPECIFIED
Status:Published
Keywords:Magnus effect, Flettner rotor, low Reynolds number, low-cost experiment
Event Title:23. STAB-DGLR-Symposium 2022
Event Location:Berlin
Event Type:national Conference
Event Start Date:9 November 2022
Event End Date:10 November 2022
Organizer:STAB/DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Virtual Rotorcraft and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Deposited By: Carter, Beatrice
Deposited On:06 Dec 2022 16:59
Last Modified:24 Apr 2024 20:51

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