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CFD Prediction of Air Flow Past a Full Helicopter Configuration

Biava, Massimo and Khier, Walid and Vigevano, Luigi (2012) CFD Prediction of Air Flow Past a Full Helicopter Configuration. Aerospace Science and Technology, 19 (1), pp. 3-18. Elsevier. doi: 10.1016/j.ast.2011.08.007. ISSN 1270-9638.

This is the latest version of this item.


Official URL: http://dx.doi.org/10.1016/j.ast.2011.08.007


The present study is one of the first attempts to exploit the GOAHEAD data base to perform a code-tocode evaluation on complete helicopter aerodynamics. The numerical results of two GOAHEAD partners, the German Aerospace Center (DLR) and Politecnico di Milano (PoliMi) are presented and compared to experimental measurements. The study also addresses an evaluation of two different approaches to predict helicopter flows. The first, applied by DLR, accounts for rotor trim and elastic effects by weak fluid–structure coupling. The PoliMi approach, on the other hand, enforces a prescribed kinematics, taken directly from the experiment, on a rigid blade. The simulations refer to a complete helicopter wind– tunnel model, featuring a scaled NH90 fuselage, the ONERA 7AD main rotor, a scaled BO105 tail rotor, a rotor hub and a pylon, all located inside the 8 m × 6 m test section of the DNW low-speed wind tunnel. The flight conditions correspond to cruise flight at Ma = 0.204 and fuselage attitude α = −2.5◦. The comparisons demonstrate the capability of present unsteady RANS solvers to predict flow fields around complete helicopters.

Item URL in elib:https://elib.dlr.de/75970/
Document Type:Article
Additional Information:Published online: 7 September 2011
Title:CFD Prediction of Air Flow Past a Full Helicopter Configuration
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Biava, MassimoAgustaWestland-Politecnico Advanced Rotorcraft Center S.r.I. (AWPARC)UNSPECIFIEDUNSPECIFIED
Vigevano, LuigiDipartimento di Ingegneria Aerospaziale, Politecnico di MilanoUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 3-18
Keywords:Complete helicopter flow field, Unsteady RANS, Fluid-structure coupling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old), Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research, L RR - Rotorcraft Research
DLR - Research theme (Project):L - Flight Physics (old), L - Simulation & Validation (old), L - The Virtual Aerodynamic Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Khier, Dr.-Ing. Walid
Deposited On:14 Jun 2012 10:12
Last Modified:31 Jul 2019 19:36

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