Method of Designing a Distortion Gauze for Testing a Boundary Layer Ingesting Fan

• Autorzy: Kwiatkowski Tomasz , Sieradzki Adam , Łukasik Borys

Identyfikatory

DOI

10.2478/tar-2022-0001

• Języki publikacji: EN

Abstrakty

EN

As global trends aim to reduce emissions of pollutants, boundary layer ingesting (BLI) propulsions are attracting more and more attention. As such, N+2 generation aircraft with propulsion placed in the aft of the aircraft are gaining in popularity. The boundary layer is formed on the fuselage before entering the engine located in the aft of the aircraft. Due to significant difficulties in performing experimental tests of BLI propulsors with full-size aircraft, distortion gauzes are one of the methods to provide the desired air velocity profile at the inlet. This paper describes a novel method of designing such gauzes, a topic which is not well covered in the existing literature. In the first stage of the presented method, single orifices of different sizes were calculated using CFD tools. The relationship between their size and the gauze resistance coefficient was identified, making it possible to model the distortion gauze using porous media. An iterative approach was used to design a gauze that meets the requirements. This is, to our knowledge, the first distortion gauze design description where a porous media model has been used. Experimental tests demonstrated that the produced distortion gauze yields a velocity profile comparable to the desired one. This indicates the great potential of using the presented approach in further research on boundary layer ingesting propulsions. It offers an opportunity to reduce substantially both the costs of experimental research and the time required to design a distortion-tolerant fan.

Słowa kluczowe

EN

boundary layer ingestion; distortion gauze; porous media; distorted velocity profile

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Transactions on Aerospace Research
• Rocznik: 2022
• Tom: Nr 1 (266)
• Strony: 1--17
• Opis fizyczny: Bibliogr. 19 poz., fot., rys., wzory

Twórcy

autor

Kwiatkowski Tomasz

• Łukasiewicz Research Network - Institute of Aviation, al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0003-3331-7058

autor

Sieradzki Adam

• Łukasiewicz Research Network - Institute of Aviation, al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0002-3448-6198

autor

Łukasik Borys

• Łukasiewicz Research Network - Institute of Aviation, al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0003-4512-2880

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).