RANS Simulation Validation of a Small Sensor Turret for UAVs

Goetten, F, Havermann, M, Braun, C, Gomez Carrasco, F and Bil, C 2019, 'RANS Simulation Validation of a Small Sensor Turret for UAVs', Journal of Aerospace Engineering, vol. 32, no. 5, pp. 1-12.


Document type: Journal Article
Collection: Journal Articles

Title RANS Simulation Validation of a Small Sensor Turret for UAVs
Author(s) Goetten, F
Havermann, M
Braun, C
Gomez Carrasco, F
Bil, C
Year 2019
Journal name Journal of Aerospace Engineering
Volume number 32
Issue number 5
Start page 1
End page 12
Total pages 12
Publisher American Society of Civil Engineers
Abstract Recent Unmanned Aerial Vehicle (UAV) design procedures rely on full aircraft steady-state Reynolds-Averaged-Navier-Stokes (RANS) analyses in early design stages. Small sensor turrets are included in such simulations, even though their aerodynamic properties show highly unsteady behavior. Very little is known about the effects of this approach on the simulation outcomes of small turrets. Therefore, the flow around a model turret at a Reynolds number of 47,400 is simulated with a steady-state RANS approach and compared to experimental data. Lift, drag, and surface pressure show good agreement with the experiment. The RANS model predicts the separation location too far downstream and shows a larger recirculation region aft of the body. Both characteristic arch and horseshoe vortex structures are visualized and qualitatively match the ones found by the experiment. The Reynolds number dependence of the drag coefficient follows the trend of a sphere within a distinct range. The outcomes indicate that a steady-state RANS model of a small sensor turret is able to give results that are useful for UAV engineering purposes but might not be suited for detailed insight into flow properties.
Subject Aerodynamics (excl. Hypersonic Aerodynamics)
Computational Fluid Dynamics
Keyword(s) Computational Fluid Dynamics
Validation
UAV
DOI - identifier 10.1061/(ASCE)AS.1943-5525.0001055
Copyright notice © ASCE
ISSN 0893-1321
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Altmetric details:
Access Statistics: 2 Abstract Views  -  Detailed Statistics
Created: Fri, 05 Jul 2019, 12:33:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us