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Application of conjugate gradient method for estimation of the wall heat flux of a supersonic combustor
Cheng LW; Zhong FQ(仲峰泉); Gu HB(顾洪斌); Zhang XY(张新宇); Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2016
Volume96Pages:249-255
ISSN0017-9310
AbstractIn 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.
KeywordConjugate Gradient Method Inverse Heat Conduction Problem Supersonic Combustor Wall Heat Flux
DOI10.1016/j.ijheatmasstransfer.2016.01.036
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000371841900024
WOS KeywordConjugate gradient method ; Inverse heat conduction problem ; Supersonic combustor ; Wall heat flux
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
Funding OrganizationThis work is funded by Natural Science Foundation of China under Contract No. 11172309 and 91441102.
DepartmentLHD高超声速推进技术
Classification一类
RankingTrue
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59537
Collection高温气体动力学国家重点实验室
Corresponding AuthorZhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
Recommended Citation
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,仲峰泉,顾洪斌,张新宇,&Zhong, FQ .(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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