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Comparison of wind tunnel and freestream conditions on the numerical predictions of the flow in a two elements wingsail

Fiumara, Alessandro and Gourdain, Nicolas and Chapin, Vincent and Senter, Julien Comparison of wind tunnel and freestream conditions on the numerical predictions of the flow in a two elements wingsail. (2015) In: AAAF 50th Applied Aerodynamics Conference (AERO 2015), 30 March 2015 - 1 April 2015 (Toulouse, France).

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Abstract

This paper is devoted to the study of a 1/20-scale model of wingsail in a wind tunnel environment. This study deals with the methodology to achieve accurate comparisons between numerical and experimental data. A particular care is brought in the numerical simulation to reproduce the wind tunnel effects on the model. The experimental results did not match with preliminary numerical simulations performed in a freestream domain. The reason is that the wind tunnel domain introduces some modifications in the flow field, around the wingsail, especially near the tip. As a consequence, a study has been done first to set the correct configuration to model the real vein conditions. Then numerical simulations based on a RANS approach have been run to study the flow around the wing in the wind tunnel environment, at different operating conditions in terms of inlet flow angles and wingsail cambers. A comparison of the numerical predictions with experimental data established the accuracy of the selected approach. The numerical results were then used to complete the investigations done during the experimental campaign.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02168473
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Assystem (FRANCE)
Laboratory name:
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Deposited By: Vincent Chapin
Deposited On:27 Jun 2019 09:41

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