Wilhelmi, Henning und Jessing, Christoph und Bell, James und Heine, Daniela und Wiedemann, Jochen und Wagner, A. und Wagner, Claus (2021) Aerodynamic Characterisation of a Compact Car Driving Behind a Heavy Vehicle. In: 22nd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIII, 151, Seiten 514-524. Springer Nature. 22. STAB/DGLR Symposium 2020, 2020-07-15, Göttingen, Deutschland. doi: 10.1007/978-3-030-79561-0_49. ISBN 978-3-030-79560-3. ISSN 1612-2909.
PDF
729kB |
Offizielle URL: https://link.springer.com/book/10.1007/978-3-030-79561-0#editorsandaffiliations
Kurzfassung
The transient incoming flow a compact car experiences whilst driving 10 m – 100 m behind a heavy vehicle on a runway has been characterised. The incoming flow was measured using a 2D array of 11 five-hole probes mounted 1 m in front of an operational, full-scale compact car. Additionally, 188 surface pressure taps were used to measure the effect of the incoming flow conditions on the compact car. The experiments were performed under ideal conditions on a 2.9 km long runway in Faßberg near the DLR in Trauen, Germany. The experiments showed that the heavy vehicle and the distance between the two vehicles have a significant impact on the flow characteristics: with decreasing distances between the vehicles the fluctuations increase from ±0.5 m/s to ±6 m/s and exhibit coherent dominant frequencies at 2.5 Hz in the spanwise direction that are attributed to the vortex shedding in the wake of the heavy vehicle. The turbulence intensities increase from 1% to 25% while the length scales decrease from 25 m to 0.25 m. The change in the incoming flow has a demonstrable influence on the surface pressure of the compact car. The pressure coefficient fluctuates by up to ±0.6 and cp, rms increases from 5% to 30%. The effect of the heavy vehicle on the pressure distribution indicates that the global forces acting on the compact car are influenced.
elib-URL des Eintrags: | https://elib.dlr.de/136507/ | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Konferenzbeitrag (Anderer) | ||||||||||||||||||||||||||||||||
Zusätzliche Informationen: | Hardcover ISBN 978-3-030-79560-3 Softcover ISBN 978-3-030-79563-4 eBook ISBN 978-3-030-79561-0 Series ISSN 1612-2909 Series E-ISSN 1860-0824 | ||||||||||||||||||||||||||||||||
Titel: | Aerodynamic Characterisation of a Compact Car Driving Behind a Heavy Vehicle | ||||||||||||||||||||||||||||||||
Autoren: |
| ||||||||||||||||||||||||||||||||
Datum: | 14 Juli 2021 | ||||||||||||||||||||||||||||||||
Erschienen in: | 22nd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIII | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
Band: | 151 | ||||||||||||||||||||||||||||||||
DOI: | 10.1007/978-3-030-79561-0_49 | ||||||||||||||||||||||||||||||||
Seitenbereich: | Seiten 514-524 | ||||||||||||||||||||||||||||||||
Herausgeber: |
| ||||||||||||||||||||||||||||||||
Verlag: | Springer Nature | ||||||||||||||||||||||||||||||||
Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||||||||||||||||
ISBN: | 978-3-030-79560-3 | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | overtaking, platooning, on-road, aerodynamics, real-world, drag, wake Überholmanöver, Straßenfahrt, Aerodynamik, Widerstand, Nachlauf | ||||||||||||||||||||||||||||||||
Veranstaltungstitel: | 22. STAB/DGLR Symposium 2020 | ||||||||||||||||||||||||||||||||
Veranstaltungsort: | Göttingen, Deutschland | ||||||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||||||
Veranstaltungsdatum: | 15 Juli 2020 | ||||||||||||||||||||||||||||||||
Veranstalter : | STAB/DGLR | ||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | keine Zuordnung | ||||||||||||||||||||||||||||||||
HGF - Programm: | keine Zuordnung | ||||||||||||||||||||||||||||||||
HGF - Programmthema: | keine Zuordnung | ||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | keine Zuordnung | ||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | keine Zuordnung | ||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | keine Zuordnung | ||||||||||||||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Bodengebundene Fahrzeuge | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Wilhelmi, Henning | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 09 Dez 2020 11:40 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:38 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags