TY - CHAP A1 - Klauke, Thomas A1 - Kühhorn, Arnold A1 - Liang, Luo A1 - Kober, Markus A1 - Sieghart, D. A1 - Führer, M. A1 - Viehweger, Bernd A1 - Fritzsche, Christoph A1 - Sarradj, Ennes T1 - Entwicklung eines 3-Blatt-CFK-Verstellpropellers für Ultraleichtflugzeuge N2 - Deutscher Luft- und Raumfahrkongress 2010, 31.08. - 02.09.2010, Hamburg Y1 - 2010 ER - TY - CHAP A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Zur Minderung des Umströmungsgeräusches bei Profilen aus porösem Material Y1 - 2008 ER - TY - GEN A1 - Sarradj, Ennes A1 - Fritzsche, Christoph A1 - Geyer, Thomas A1 - Giesler, Jens T1 - Acoustic and aerodynamic design and characterization of a small-scale aeroacoustic wind tunnel Y1 - 2009 ER - TY - GEN A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Porous Airfoils: Noise Reduction and Boundary Layer Effects Y1 - 2010 ER - TY - GEN A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Measurement of the noise generation at the trailing edge of porous airfoils T2 - Experiments in Fluids Y1 - 2010 SN - 0723-4864 VL - 48 IS - 2 SP - 291 EP - 308 ER - TY - CHAP A1 - Fritzsche, Christoph A1 - Sarradj, Ennes A1 - Geyer, Thomas T1 - Akustische Polaren Y1 - 2010 ER - TY - CHAP A1 - Fritzsche, Christoph A1 - Sarradj, Ennes A1 - Geyer, Thomas T1 - Silent owl flight: setup for flyover noise measurements Y1 - 2009 ER - TY - CHAP A1 - Fritzsche, Christoph A1 - Sarradj, Ennes A1 - Geyer, Thomas A1 - Giesler, Jens T1 - Hinterkantengeräusch an einem aerodynamischen Profil Y1 - 2008 ER - TY - CHAP A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Der leise Flug der Eulen T2 - Fortschritte der Akustik, DAGA 2011, 37. Jahrestagung für Akustik, 21. - 24. März 2011 in Düsseldorf Y1 - 2011 SN - 978-3-939296-02-7 PB - Deutsche Gesellschaft für Akustik CY - Berlin ER - TY - CHAP A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Schallentstehung und turbulente Grenzschicht an der Hinterkante poröser Profile Y1 - 2010 ER - TY - CHAP A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Silent owl flight: experiments in the aeroacoustic wind tunnel Y1 - 2009 ER - TY - CHAP A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Integrierte aerodynamische und akustische Auslegung eines Propellers für Ultraleichtflugzeuge T2 - Fortschritte der Akustik, DAGA 2011, 37. Jahrestagung für Akustik, 21. - 24. März 2011 in Düsseldorf Y1 - 2011 PB - Deutsche Gesellschaft für Akustik CY - Berlin ER - TY - GEN A1 - Sarradj, Ennes A1 - Fritzsche, Christoph A1 - Geyer, Thomas T1 - Silent Owl Flight: Bird Flyover Noise Measurements Y1 - 2011 ER - TY - GEN A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Silent Owl Flight: Comparative Acoustic Wind Tunnel Measurements on Prepared Wings T2 - Acta Acustica united with Acustica Y1 - 2013 SN - 1861-9959 VL - 99 IS - 1 SP - 139 EP - 153 ER - TY - GEN A1 - Geyer, Thomas A1 - Windisch, Thomas A1 - Fritzsche, Christoph A1 - Sarradj, Ennes T1 - Dataset on permeability of wings from owls and non-silently flying birds T2 - Data in Brief Y1 - 2024 U6 - https://doi.org/10.1016/j.dib.2023.109825 SN - 2352-3409 VL - 52 ER - TY - GEN A1 - Geyer, Thomas A1 - Windisch, Thomas A1 - Fritzsche, Christoph A1 - Sarradj, Ennes T1 - Dataset on airflow resistance of wings from owls and non-silently flying birds Y1 - 2023 U6 - https://doi.org/10.17632/ndcndtstcf.1 ER - TY - GEN A1 - Geyer, Thomas A1 - Fritzsche, Christoph A1 - Sarradj, Ennes A1 - Wagner, Hermann T1 - Der leise Flug der Eule T2 - Akustik Journal Y1 - 2021 UR - https://www.dega-akustik.de/fileadmin/dega-akustik.de/publikationen/akustik-journal/21-02/akustik_journal_2021_02_online.pdf VL - 2021 IS - 2 SP - 9 EP - 17 ER - TY - CHAP A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Measuring the Noise Generation in Owl Flight T2 - Book of abstracts, Internoise 2014 Conference, 43rd International Congress on Noise Control Engineering, Melbourne, 16 - 19 November 2014 Y1 - 2014 UR - http://www.acoustics.asn.au/conference_proceedings/INTERNOISE2014/papers/INTERNOISE2014-abstracts.pdf ER - TY - CHAP A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Nature-Inspired Porous Airfoils for Sound Reduction Y1 - 2012 SN - 978-3-642-28301-7 U6 - https://doi.org/10.1007/978-3-642-28302-4_21 SP - 355 EP - 370 PB - Springer CY - Heidelberg ER - TY - GEN A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Silent Owl Flight: Acoustic Wind Tunnel Measurements on Prepared Wings T2 - 18th AIAA/CEAS Aeroacoustics Conference, 33rd AIAA Aeroacoustics Conference Y1 - 2012 U6 - https://doi.org/10.2514/6.2012-2230 N1 - AIAA-Paper 2012-2230 PB - American Institute of Aeronautics and Astronautics ER - TY - GEN A1 - Geyer, Thomas A1 - Sarradj, Ennes A1 - Fritzsche, Christoph T1 - Porous Airfoils: Noise Reduction and Boundary Layer Effects T2 - 15th AIAA/CEAS Aeroacoustics Conference, (30th AIAA Aeroacoustics Conference), Miami (FL/USA), 2009, AIAA, AIAA paper 2009-3329 Y1 - 2009 SN - 978-1-61567-141-0 PB - American Institute of Aeronautics and Astronautics CY - Reston, Va. ER - TY - GEN A1 - Sarradj, Ennes A1 - Fritzsche, Christoph A1 - Geyer, Thomas T1 - Silent Owl Flight: Bird Flyover Noise Measurements T2 - 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference), 7-9 June 2010, Stockholm, Sweden paper 2010-3991 Y1 - 2010 SN - 978-1-60086-744-6 PB - American Institute of Aeronautics and Astronautics CY - Reston, Va ER -