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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

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

Abstract

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
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Biava, MassimoAgustaWestland-Politecnico Advanced Rotorcraft Center S.r.I. (AWPARC)UNSPECIFIED
Khier, Walidwalid.khier (at) dlr.deUNSPECIFIED
Vigevano, LuigiDipartimento di Ingegneria Aerospaziale, Politecnico di MilanoUNSPECIFIED
Date:2012
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:19
DOI :10.1016/j.ast.2011.08.007
Page Range:pp. 3-18
Publisher:Elsevier
ISSN:1270-9638
Status:Published
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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  • CFD Prediction of Air Flow Past a Full Helicopter Configuration. (deposited 14 Jun 2012 10:12) [Currently Displayed]

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