Blade surface pressure and drag measurement of a blade section on a 4.3&thinsp;MW turbine with trailing-edge flaps

Madsen, Helge Aagaard; Gomez Gonzalez, Alejandro; Barlas, Thanasis; Olsen, Anders Smærup; Ildvedsen, Sigurd Brabæk; Fischer, Andreas

doi:10.5194/wes-10-2499-2025

Articles | Volume 10, issue 11

https://doi.org/10.5194/wes-10-2499-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wes-10-2499-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 10, issue 11

Research article

|

04 Nov 2025

Research article |

| 04 Nov 2025

Blade surface pressure and drag measurement of a blade section on a 4.3 MW turbine with trailing-edge flaps

Helge Aagaard Madsen, Alejandro Gomez Gonzalez, Thanasis Barlas, Anders Smærup Olsen, Sigurd Brabæk Ildvedsen, and Andreas Fischer

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Cumulative views and downloads (calculated since 13 May 2025)

Month	HTML	PDF	XML	Total
May 2025	76	23	5	104
Jun 2025	68	19	6	93
Jul 2025	73	24	26	123
Aug 2025	101	2	1	104
Sep 2025	307	15	2	324
Oct 2025	48	18	2	68
Nov 2025	252	59	19	330
Dec 2025	205	70	10	285
Jan 2026	187	72	7	266
Feb 2026	59	52	6	117
Mar 2026	72	61	3	136
Apr 2026	78	55	21	154
May 2026	125	48	5	178
Jun 2026	16	15	1	32
Jul 2026	69	29	8	106
Aug 2026	15	7	0	22

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Short summary

In this article, we present the measurements of local aerodynamic sectional characteristics on a full-scale rotor blade with a novel add-on instrumentation comprising a wake rake, a pressure belt, and a five-hole Pitot tube. In general, the demonstration of this instrumentation opens a range of promising new options for optimizing airfoil sectional performance in its real operating environment, e.g., the size and position of vortex generators.