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Code-to-Code Comparison for the Blind-Test Activity of the Tiltaero Project

Visingardi, A. and Decours, J. and Khier, W. and Voutsinas, S. (2005) Code-to-Code Comparison for the Blind-Test Activity of the Tiltaero Project. 31st European Rotorcraft Forum, Florenz (it), 13.-15.09.2005.

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Abstract

The present paper illustrates the results obtained so far by CIRA, DLR, NTUA and ONERA during a blind-test activity performed in the framework of WP1 of the European research project TILTAERO (TILTrotor interactional AEROdynamics). The aim of the work package is to evaluate the capabilities of the prediction tools applied for the analysis of the interactional aerodynamics of a tilt rotor configuration. Two BEM methodologies, differing with respect to the wake modelling, an unsteady RANS and a quasi-steady RANS CFD methodologies have been applied by the authors for this purpose. The paper provides a synthetic description of the TILTAERO project and illustrates the main aspects of the blind-test activity. The main features of the numerical methodologies applied are also described. The analysis is performed by illustrating the numerical results obtained for three different test conditions of the TILTAERO wind tunnel mock-up in terms of quasi-steady, time-averaged and unsteady pressure distributions as well as quasi-steady, time-averaged and unsteady normal forces acting on the configuration. These results, obtained prior to the production and release of the relevant experimental data base, have provided useful indications of the complex interactional phenomenology.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Code-to-Code Comparison for the Blind-Test Activity of the Tiltaero Project
Authors:
AuthorsInstitution or Email of Authors
Visingardi, A.CIRA
Decours, J.ONERA
Khier, W.UNSPECIFIED
Voutsinas, S.NTUA
Date:2005
Status:Published
Keywords:Tilt rotor aerodynamics, 3D time accurate simulation, Rotor/propeller-wing interaction
Event Title:31st European Rotorcraft Forum, Florenz (it), 13.-15.09.2005
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Active Rotorcraft (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:09 Oct 2005
Last Modified:14 Jan 2010 20:03

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