Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake

For turboprop engine, the S-shaped intake affects the engine performance and the propeller is not far in front of the inlet of the S-shaped intake, so the slipstream inevitably affects the flow field in the S-shaped intake and the engine performance. Here, an S-shaped intake with/without propeller i...

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Autores principales:	Shuili Ren, Peiqing Liu
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/ea19c6017e9f475ca93a77e5a1323aed
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spelling	oai:doaj.org-article:ea19c6017e9f475ca93a77e5a1323aed2021-11-08T02:36:04ZInfluence of Propeller Slipstream on the Flow Field of S-Shaped Intake1687-597410.1155/2021/6220378https://doaj.org/article/ea19c6017e9f475ca93a77e5a1323aed2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/6220378https://doaj.org/toc/1687-5974For turboprop engine, the S-shaped intake affects the engine performance and the propeller is not far in front of the inlet of the S-shaped intake, so the slipstream inevitably affects the flow field in the S-shaped intake and the engine performance. Here, an S-shaped intake with/without propeller is studied by solving Reynolds-averaged Navier-Stokes equation employed SST k-ω turbulence model. The results are presented as time-averaged results and transient results. By comparing the flow field in S-shaped intake with/without propeller, the transient results show that total pressure recovery coefficient and distortion coefficient on the AIP section vary periodically with time. The time-averaged results show that the influence of propeller slipstream on the performance of S-shaped intake is mainly circumferential interference and streamwise interference. Circumferential interference mainly affects the secondary flow in the S-shaped intake and then affects the airflow uniformity; the streamwise interference mainly affects the streamwise flow separation in the S-shaped intake and then affects the total pressure recovery. The total pressure recovery coefficient on the AIP section for the S-shaped intake with propeller is 1%-2.5% higher than that for S-shaped intake without propeller, and the total pressure distortion coefficient on the AIP section for the S-shaped intake with propeller is 1%-12% higher than that for the S-shaped intake without propeller. However, compared with the free stream flow velocity (Ma=0.527), the influence of the propeller slipstream belongs to the category of small disturbance, which is acceptable for engineering applications.Shuili RenPeiqing LiuHindawi LimitedarticleMotor vehicles. Aeronautics. AstronauticsTL1-4050ENInternational Journal of Aerospace Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	Motor vehicles. Aeronautics. Astronautics TL1-4050 Shuili Ren Peiqing Liu Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake
description	For turboprop engine, the S-shaped intake affects the engine performance and the propeller is not far in front of the inlet of the S-shaped intake, so the slipstream inevitably affects the flow field in the S-shaped intake and the engine performance. Here, an S-shaped intake with/without propeller is studied by solving Reynolds-averaged Navier-Stokes equation employed SST k-ω turbulence model. The results are presented as time-averaged results and transient results. By comparing the flow field in S-shaped intake with/without propeller, the transient results show that total pressure recovery coefficient and distortion coefficient on the AIP section vary periodically with time. The time-averaged results show that the influence of propeller slipstream on the performance of S-shaped intake is mainly circumferential interference and streamwise interference. Circumferential interference mainly affects the secondary flow in the S-shaped intake and then affects the airflow uniformity; the streamwise interference mainly affects the streamwise flow separation in the S-shaped intake and then affects the total pressure recovery. The total pressure recovery coefficient on the AIP section for the S-shaped intake with propeller is 1%-2.5% higher than that for S-shaped intake without propeller, and the total pressure distortion coefficient on the AIP section for the S-shaped intake with propeller is 1%-12% higher than that for the S-shaped intake without propeller. However, compared with the free stream flow velocity (Ma=0.527), the influence of the propeller slipstream belongs to the category of small disturbance, which is acceptable for engineering applications.
format	article
author	Shuili Ren Peiqing Liu
author_facet	Shuili Ren Peiqing Liu
author_sort	Shuili Ren
title	Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake
title_short	Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake
title_full	Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake
title_fullStr	Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake
title_full_unstemmed	Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake
title_sort	influence of propeller slipstream on the flow field of s-shaped intake
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/ea19c6017e9f475ca93a77e5a1323aed
work_keys_str_mv	AT shuiliren influenceofpropellerslipstreamontheflowfieldofsshapedintake AT peiqingliu influenceofpropellerslipstreamontheflowfieldofsshapedintake
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Influence of Propeller Slipstream on the Flow Field of S-Shaped Intake

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