Laminar Flow Control along the Attachment Line of a Swept Wing
| Autor: | Methel, Jeanne, Méry, Fabien, Forte, Maxime, Vermeersch, Olivier |
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| Přispěvatelé: | ONERA / DMPE, Université de Toulouse [Toulouse], ONERA-PRES Université de Toulouse, This work was funded by the European Union within the frame of the HLFC-WIN project. This project is part of the Clean Sky 2 Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme, in the LPA-IADP platform (Grant agreement CS2- GAM-2020-LPA-AMD-945583-23)., European Project: 945583 |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | The 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022 The 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022, Jun 2022, Oslo, Norway |
| DOI: | 10.23967/eccomas.2022.160 |
| Popis: | International audience; Reducing aircraft fuel consumption by maximising the extent of laminar flow on wings assumes that the initial flow, along the wing's attachment line, is laminar. However, if the wing is attached to a solid wall, the wing's attachment line can be contaminated by the turbulent boundary layer developing over the solid wall for flow conditions summarised in a critical Reynolds number (R) greater than 250. Since typical R values encountered in flight can be well above 400, techniques, such as wall suction along the wing's leading edge were developed to further delay the threshold R at which contamination occurs. The present paper presents the results from an experimental investigation performed on the ONERA DTP-A model fitted with leading edge suction capabilities. The experiment was performed in the ONERA F2 wind tunnel in the framework of the EU-funded Clean Sky 2 HLFC-WIN project (LPA-IADP platform), while the suction panels were manufactured by Aernnova, an aero-component manufacturing company. Hot film measurements and infra-red thermography showed that attachment line contamination could effectively be delayed up to threshold R values of 1000 for large suction flow rates. Although panels from different manufacturing processes and with different geometric characteristics were tested, no significant difference from these parameters were observed. |
| Databáze: | OpenAIRE |
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