Effect of Active Flow Control Near the Inlet on Performance on S-Duct

Jihyeong Lee, Shichao Zhang, Cheolheui Han, Jin Soo Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An intake is a device for supplying external air into the internal engine of an aircraft. In order to reduce the radar reflection on the engine face for reducing the observability, intake has an S-shaped duct. When applied to s-duct of the fuselage, the uniformity of the flow at the engine face varies depending on the state of flow at the inlet of the duct. In this study, the effect of active flow control at the inlet of S-duct was analyzed using a commercial computational fluid dynamics tool. The purpose of this study is to investigate the effect of the active flow control factors for an RAE M 2129 S-duct. The study was conducted by changing the position, length, and mass flow of the active flow control, and the mass flow was within 1% of the s-duct internal mass flow. The OLHD method was applied to 15 models for three factors and the k-ω SST turbulence model was used to predict the flow separation and secondary flow by adverse pressure gradient. In conclusion, the performance of the S-duct was found to have the greatest influence on the position of the flow control, and it was confirmed that the performance was the worst when the position was 0 in the duct standard.

Original languageEnglish
Title of host publicationThe Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018
EditorsXinguo Zhang
PublisherSpringer Verlag
Pages431-438
Number of pages8
ISBN (Print)9789811333040
DOIs
StatePublished - 2019 Jan 1
EventAsia-Pacific International Symposium on Aerospace Technology, APISAT 2018 - Chengdu, China
Duration: 2018 Oct 162018 Oct 18

Publication series

NameLecture Notes in Electrical Engineering
Volume459
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceAsia-Pacific International Symposium on Aerospace Technology, APISAT 2018
CountryChina
CityChengdu
Period18/10/1618/10/18

Fingerprint

Flow control
Ducts
Engines
Radar reflection
Fuselages
Flow separation
Secondary flow
Observability
Pressure gradient
Turbulence models
Computational fluid dynamics
Aircraft
Air

Keywords

  • Active flow control
  • Boundary layer thickness
  • Distortion coefficient
  • S-duct

Cite this

Lee, J., Zhang, S., Han, C., & Cho, J. S. (2019). Effect of Active Flow Control Near the Inlet on Performance on S-Duct. In X. Zhang (Ed.), The Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018 (pp. 431-438). (Lecture Notes in Electrical Engineering; Vol. 459). Springer Verlag. https://doi.org/10.1007/978-981-13-3305-7_35
Lee, Jihyeong ; Zhang, Shichao ; Han, Cheolheui ; Cho, Jin Soo. / Effect of Active Flow Control Near the Inlet on Performance on S-Duct. The Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018. editor / Xinguo Zhang. Springer Verlag, 2019. pp. 431-438 (Lecture Notes in Electrical Engineering).
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title = "Effect of Active Flow Control Near the Inlet on Performance on S-Duct",
abstract = "An intake is a device for supplying external air into the internal engine of an aircraft. In order to reduce the radar reflection on the engine face for reducing the observability, intake has an S-shaped duct. When applied to s-duct of the fuselage, the uniformity of the flow at the engine face varies depending on the state of flow at the inlet of the duct. In this study, the effect of active flow control at the inlet of S-duct was analyzed using a commercial computational fluid dynamics tool. The purpose of this study is to investigate the effect of the active flow control factors for an RAE M 2129 S-duct. The study was conducted by changing the position, length, and mass flow of the active flow control, and the mass flow was within 1{\%} of the s-duct internal mass flow. The OLHD method was applied to 15 models for three factors and the k-ω SST turbulence model was used to predict the flow separation and secondary flow by adverse pressure gradient. In conclusion, the performance of the S-duct was found to have the greatest influence on the position of the flow control, and it was confirmed that the performance was the worst when the position was 0 in the duct standard.",
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Lee, J, Zhang, S, Han, C & Cho, JS 2019, Effect of Active Flow Control Near the Inlet on Performance on S-Duct. in X Zhang (ed.), The Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018. Lecture Notes in Electrical Engineering, vol. 459, Springer Verlag, pp. 431-438, Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018, Chengdu, China, 18/10/16. https://doi.org/10.1007/978-981-13-3305-7_35

Effect of Active Flow Control Near the Inlet on Performance on S-Duct. / Lee, Jihyeong; Zhang, Shichao; Han, Cheolheui; Cho, Jin Soo.

The Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018. ed. / Xinguo Zhang. Springer Verlag, 2019. p. 431-438 (Lecture Notes in Electrical Engineering; Vol. 459).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - An intake is a device for supplying external air into the internal engine of an aircraft. In order to reduce the radar reflection on the engine face for reducing the observability, intake has an S-shaped duct. When applied to s-duct of the fuselage, the uniformity of the flow at the engine face varies depending on the state of flow at the inlet of the duct. In this study, the effect of active flow control at the inlet of S-duct was analyzed using a commercial computational fluid dynamics tool. The purpose of this study is to investigate the effect of the active flow control factors for an RAE M 2129 S-duct. The study was conducted by changing the position, length, and mass flow of the active flow control, and the mass flow was within 1% of the s-duct internal mass flow. The OLHD method was applied to 15 models for three factors and the k-ω SST turbulence model was used to predict the flow separation and secondary flow by adverse pressure gradient. In conclusion, the performance of the S-duct was found to have the greatest influence on the position of the flow control, and it was confirmed that the performance was the worst when the position was 0 in the duct standard.

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Lee J, Zhang S, Han C, Cho JS. Effect of Active Flow Control Near the Inlet on Performance on S-Duct. In Zhang X, editor, The Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018. Springer Verlag. 2019. p. 431-438. (Lecture Notes in Electrical Engineering). https://doi.org/10.1007/978-981-13-3305-7_35