A decomposition formula for the wall heat flux of a compressible boundary layer

Abstract Understanding the generation mechanism of the heat flux is essential for the design of hypersonic vehicles. We proposed a novel formula to decompose the heat flux coefficient into the contributions of different terms by integrating the conservative equation of the total energy. The reliabil...

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Autores principales:	Dong Sun, Qilong Guo, Xianxu Yuan, Haoyuan Zhang, Chen Li, Pengxin Liu
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Heat flux Hypersonic boundary layer Direct numerical simulation Engineering (General). Civil engineering (General) TA1-2040 Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/80f7f5b80b324dffb455befad500b18a
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spelling	oai:doaj.org-article:80f7f5b80b324dffb455befad500b18a2021-11-08T11:18:55ZA decomposition formula for the wall heat flux of a compressible boundary layer10.1186/s42774-021-00081-y2524-6992https://doaj.org/article/80f7f5b80b324dffb455befad500b18a2021-11-01T00:00:00Zhttps://doi.org/10.1186/s42774-021-00081-yhttps://doaj.org/toc/2524-6992Abstract Understanding the generation mechanism of the heat flux is essential for the design of hypersonic vehicles. We proposed a novel formula to decompose the heat flux coefficient into the contributions of different terms by integrating the conservative equation of the total energy. The reliability of the formula is well demonstrated by the direct numerical simulation results of a hypersonic transitional boundary layer. Through this formula, the exact process of the energy transport in the boundary layer can be explained and the dominant contributors to the heat flux can be explored, which are beneficial for the prediction of the heat and design of the thermal protection devices.Dong SunQilong GuoXianxu YuanHaoyuan ZhangChen LiPengxin LiuSpringerOpenarticleHeat fluxHypersonic boundary layerDirect numerical simulationEngineering (General). Civil engineering (General)TA1-2040Motor vehicles. Aeronautics. AstronauticsTL1-4050ENAdvances in Aerodynamics, Vol 3, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Heat flux Hypersonic boundary layer Direct numerical simulation Engineering (General). Civil engineering (General) TA1-2040 Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	Heat flux Hypersonic boundary layer Direct numerical simulation Engineering (General). Civil engineering (General) TA1-2040 Motor vehicles. Aeronautics. Astronautics TL1-4050 Dong Sun Qilong Guo Xianxu Yuan Haoyuan Zhang Chen Li Pengxin Liu A decomposition formula for the wall heat flux of a compressible boundary layer
description	Abstract Understanding the generation mechanism of the heat flux is essential for the design of hypersonic vehicles. We proposed a novel formula to decompose the heat flux coefficient into the contributions of different terms by integrating the conservative equation of the total energy. The reliability of the formula is well demonstrated by the direct numerical simulation results of a hypersonic transitional boundary layer. Through this formula, the exact process of the energy transport in the boundary layer can be explained and the dominant contributors to the heat flux can be explored, which are beneficial for the prediction of the heat and design of the thermal protection devices.
format	article
author	Dong Sun Qilong Guo Xianxu Yuan Haoyuan Zhang Chen Li Pengxin Liu
author_facet	Dong Sun Qilong Guo Xianxu Yuan Haoyuan Zhang Chen Li Pengxin Liu
author_sort	Dong Sun
title	A decomposition formula for the wall heat flux of a compressible boundary layer
title_short	A decomposition formula for the wall heat flux of a compressible boundary layer
title_full	A decomposition formula for the wall heat flux of a compressible boundary layer
title_fullStr	A decomposition formula for the wall heat flux of a compressible boundary layer
title_full_unstemmed	A decomposition formula for the wall heat flux of a compressible boundary layer
title_sort	decomposition formula for the wall heat flux of a compressible boundary layer
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/80f7f5b80b324dffb455befad500b18a
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A decomposition formula for the wall heat flux of a compressible boundary layer

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