Application of conjugate gradient method for estimation of the wall heat flux of a supersonic combustor | |
Cheng LW(程柳维); Zhong FQ(仲峰泉); Gu HB(顾洪斌); Zhang XY(张新宇) | |
发表期刊 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER |
2016 | |
卷号 | 96页码:249-255 |
ISSN | 0017-9310 |
摘要 | In this paper, conjugate gradient method (CGM) considering variations in material properties with temperature is developed to solve transient inverse heat conduction problems. With CGM, the measured outer wall temperatures of supersonic combustor are used as input data to recover the heat flux and temperature on the inner wall. Numerical test has been done to study the effect of temperature measurement noises on accuracy of the inversion result. It indicates that the inversion results are very close to the exact heat flux with a maximum error of less than 5% when the measurement noise is less than +/- 3 K. At the same time, a series of experiments are conducted on a Mach 3 supersonic combustor test facility with varied fuel injection conditions. The heat fluxes on the inner wall are recovered by measured outer wall temperatures via CGM. The inversion results of heat flux agree satisfactorily with the values measured by heat flux sensors and a maximum difference of less than 5% is found. The present comparison results prove the validity and accuracy of the CGM developed in the paper for estimation of the wall heat flux of supersonic combustor. (C) 2016 Elsevier Ltd. All rights reserved. |
关键词 | Conjugate Gradient Method Inverse Heat Conduction Problem Supersonic Combustor Wall Heat Flux |
DOI | 10.1016/j.ijheatmasstransfer.2016.01.036 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000371841900024 |
关键词[WOS] | Conjugate gradient method ; Inverse heat conduction problem ; Supersonic combustor ; Wall heat flux |
WOS研究方向 | Thermodynamics ; Engineering ; Mechanics |
WOS类目 | Thermodynamics ; Engineering, Mechanical ; Mechanics |
项目资助者 | This work is funded by Natural Science Foundation of China under Contract No. 11172309 and 91441102. |
论文分区 | 一类 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/59537 |
专题 | 高温气体动力学国家重点实验室 |
通讯作者 | Zhong FQ(仲峰泉) |
推荐引用方式 GB/T 7714 | Cheng LW,Zhong FQ,Gu HB,et al. Application of conjugate gradient method for estimation of the wall heat flux of a supersonic combustor[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2016,96:249-255. |
APA | Cheng LW,Zhong FQ,Gu HB,&Zhang XY.(2016).Application of conjugate gradient method for estimation of the wall heat flux of a supersonic combustor.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,96,249-255. |
MLA | Cheng LW,et al."Application of conjugate gradient method for estimation of the wall heat flux of a supersonic combustor".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 96(2016):249-255. |
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