Goerttler, Andreas and Braukmann, Johannes N. and Wolf, C. Christian and Gardner, Anthony D. and Raffel, Markus (2019) Blade Tip-Vortices of a Four-Bladed Rotor with Axial Inflow. In: Proceedings of the 75th Annual Forum and Technology Display, pp. 1-13. VFS 75th Annual Forum & Technology Display, 13.-16. Mai 2019, Philadelphia, PA, USA.
![]() |
PDF
- Only accessible within DLR
4MB |
Official URL: https://vtol.org/
Abstract
The vortex system of four rotating and pitching DSA-9A blades was examined numerically and experimentally. Numerical computations were performed using DLR's finite-volume solver TAU and were validated against experimental data gathered using particle image velocimetry (PIV) carried out at the rotor test facility in Gottingen (RTG). Algorithms deriving the vortex position, swirl velocity, circulation and core radius were implemented. Hover-like conditions with a fixed blade pitch were analyzed giving a good picture of the static vortex system. These results are used to understand the vortex development for the unsteady pitching conditions, which can be described as a superpositioning of static vortex states. The use of a zonal DES approach reduced numerical dissipation and improved physical modelling of the vortex development.
Item URL in elib: | https://elib.dlr.de/122533/ | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||
Title: | Blade Tip-Vortices of a Four-Bladed Rotor with Axial Inflow | ||||||||||||||||||
Authors: |
| ||||||||||||||||||
Date: | May 2019 | ||||||||||||||||||
Journal or Publication Title: | Proceedings of the 75th Annual Forum and Technology Display | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||
Page Range: | pp. 1-13 | ||||||||||||||||||
Series Name: | Conference Proceedings digital | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Blade Tip Vortex, Helicopter, Rotor, CFD, Experiment | ||||||||||||||||||
Event Title: | VFS 75th Annual Forum & Technology Display | ||||||||||||||||||
Event Location: | Philadelphia, PA, USA | ||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||
Event Dates: | 13.-16. Mai 2019 | ||||||||||||||||||
Organizer: | AHS - The Vertical Flight Society | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||
HGF - Program Themes: | rotorcraft | ||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||
DLR - Program: | L RR - Rotorcraft Research | ||||||||||||||||||
DLR - Research theme (Project): | L - The Virtual Aerodynamic Rotorcraft (old) | ||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Helicopter, GO | ||||||||||||||||||
Deposited By: | Winkels, Elisabeth | ||||||||||||||||||
Deposited On: | 12 Jun 2019 11:07 | ||||||||||||||||||
Last Modified: | 19 Sep 2019 13:31 |
Repository Staff Only: item control page