Evaluative Analysis of Formulas of Heat Transfer Coefficient of Rock Fracture

doi:10.1007/s10765-020-02679-8

	Evaluative Analysis of Formulas of Heat Transfer Coefficient of Rock Fracture
	Jiang, Yinqiang 1,3; Yao, Huayan 3; Cui, Yinxiang 1,2; Lei, Hongwu 1,2; He, Yuanyuan 1; Bai, Bing 1,2
刊名	INTERNATIONAL JOURNAL OF THERMOPHYSICS
	2020-05-26
卷号	41 期号:8 页码:20
关键词	Condition number Heat transfer coefficient Numerical stability evaluation Relative error
ISSN号	0195-928X
DOI	10.1007/s10765-020-02679-8
英文摘要	Heat transfer coefficient (HTC) is a useful concept to characterize the heat exchange performance of rock fracture. However, existing study has preliminarily found that some HTC formulas would lead to abnormal values, which claims a systematical evaluation of existing formulas. In this paper, 214 test records are employed to evaluate 8 existing formulas from literature. It is found that, for all these experimental data, Bai's formula (Formula D) developed in 2017 shows fairly good numerical stability, while the rest show numerical oscillations and anomalies in different degrees. Moreover, the numerical oscillations and anomalies would be exacerbated with the increase of flow rates, which leads to poor applicability. Error propagation theory in numerical analysis is used to analyze the mechanism of the numerical oscillations and anomalies which can be effectively explained with the condition number and the relative error of the corresponding formula.
资助项目	National Natural Science Foundation of China[41672252]
WOS研究方向	Thermodynamics ; Chemistry ; Mechanics ; Physics
语种	英语
出版者	SPRINGER/PLENUM PUBLISHERS
WOS记录号	WOS:000535680300001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24255]
专题	中科院武汉岩土力学所
通讯作者	Bai, Bing
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomechan & Geotech Engn, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China 3.Hefei Univ Technol, Sch Civil & Hydraul Engn, Hefei 230041, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Yinqiang,Yao, Huayan,Cui, Yinxiang,et al. Evaluative Analysis of Formulas of Heat Transfer Coefficient of Rock Fracture[J]. INTERNATIONAL JOURNAL OF THERMOPHYSICS,2020,41(8):20.
APA	Jiang, Yinqiang,Yao, Huayan,Cui, Yinxiang,Lei, Hongwu,He, Yuanyuan,&Bai, Bing.(2020).Evaluative Analysis of Formulas of Heat Transfer Coefficient of Rock Fracture.INTERNATIONAL JOURNAL OF THERMOPHYSICS,41(8),20.
MLA	Jiang, Yinqiang,et al."Evaluative Analysis of Formulas of Heat Transfer Coefficient of Rock Fracture".INTERNATIONAL JOURNAL OF THERMOPHYSICS 41.8(2020):20.