Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range

In this work, a new spillage-adaptive bump inlet concept is proposed to widen the speed range for hypersonic air-breathing flight vehicles. Various approaches to improve the inlet start-ability are summarized and compared, among which the bump-inlet pattern holds the merits of high lift-to-drag rati...

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Autores principales:	Zonghan Yu, Guoping Huang, Ruilin Wang, Omer Musa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	wide speed range air-breathing flight vehicle flow spillage inlet-airframe integration inlet start Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/73307c583d2d4aa6a68a56b9920e2e5b
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id	oai:doaj.org-article:73307c583d2d4aa6a68a56b9920e2e5b
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spelling	oai:doaj.org-article:73307c583d2d4aa6a68a56b9920e2e5b2021-11-25T15:57:40ZSpillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range10.3390/aerospace81103402226-4310https://doaj.org/article/73307c583d2d4aa6a68a56b9920e2e5b2021-11-01T00:00:00Zhttps://www.mdpi.com/2226-4310/8/11/340https://doaj.org/toc/2226-4310In this work, a new spillage-adaptive bump inlet concept is proposed to widen the speed range for hypersonic air-breathing flight vehicles. Various approaches to improve the inlet start-ability are summarized and compared, among which the bump-inlet pattern holds the merits of high lift-to-drag ratio, boundary layer diversion, and flexible integration ability. The proposed spillage-adaptive concept ensures the inlet starting performance by spilling extra mass flow away at low speed number conditions. The inlet presetting position is determined by synthetically evaluating the flow uniformity and the low-kinetic-energy fluid proportion. The numerical results show that the flow spillage of the inlet increases with the inflow speed decrease, which makes the inlet easier to start at low speed conditions (M 2.5–6.0). The effects of the boundary layer on spillage are also studied in this work. The new integration pattern releases the flow spillage potentials of three-dimensional inward-turning inlets by reasonably arranging the inlet compression on the bump surface. Future work will focus on the spillage-controllable design method.Zonghan YuGuoping HuangRuilin WangOmer MusaMDPI AGarticlewide speed rangeair-breathing flight vehicleflow spillageinlet-airframe integrationinlet startMotor vehicles. Aeronautics. AstronauticsTL1-4050ENAerospace, Vol 8, Iss 340, p 340 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wide speed range air-breathing flight vehicle flow spillage inlet-airframe integration inlet start Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	wide speed range air-breathing flight vehicle flow spillage inlet-airframe integration inlet start Motor vehicles. Aeronautics. Astronautics TL1-4050 Zonghan Yu Guoping Huang Ruilin Wang Omer Musa Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
description	In this work, a new spillage-adaptive bump inlet concept is proposed to widen the speed range for hypersonic air-breathing flight vehicles. Various approaches to improve the inlet start-ability are summarized and compared, among which the bump-inlet pattern holds the merits of high lift-to-drag ratio, boundary layer diversion, and flexible integration ability. The proposed spillage-adaptive concept ensures the inlet starting performance by spilling extra mass flow away at low speed number conditions. The inlet presetting position is determined by synthetically evaluating the flow uniformity and the low-kinetic-energy fluid proportion. The numerical results show that the flow spillage of the inlet increases with the inflow speed decrease, which makes the inlet easier to start at low speed conditions (M 2.5–6.0). The effects of the boundary layer on spillage are also studied in this work. The new integration pattern releases the flow spillage potentials of three-dimensional inward-turning inlets by reasonably arranging the inlet compression on the bump surface. Future work will focus on the spillage-controllable design method.
format	article
author	Zonghan Yu Guoping Huang Ruilin Wang Omer Musa
author_facet	Zonghan Yu Guoping Huang Ruilin Wang Omer Musa
author_sort	Zonghan Yu
title	Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
title_short	Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
title_full	Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
title_fullStr	Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
title_full_unstemmed	Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
title_sort	spillage-adaptive fixed-geometry bump inlet of wide speed range
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/73307c583d2d4aa6a68a56b9920e2e5b
work_keys_str_mv	AT zonghanyu spillageadaptivefixedgeometrybumpinletofwidespeedrange AT guopinghuang spillageadaptivefixedgeometrybumpinletofwidespeedrange AT ruilinwang spillageadaptivefixedgeometrybumpinletofwidespeedrange AT omermusa spillageadaptivefixedgeometrybumpinletofwidespeedrange
_version_	1718413385633103872

Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range

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