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Effects of wall thickness and material property on inverse heat conduction analysis of a hollow cylindrical tube

Title
Effects of wall thickness and material property on inverse heat conduction analysis of a hollow cylindrical tube
Author
육세진
Keywords
Inverse heat conduction problem; hollow cylindrical tube; thermal resistance network; Kalman filter; recursive input estimation algorithm
Issue Date
2018-09
Publisher
TAYLOR & FRANCIS LTD
Citation
INVERSE PROBLEMS IN SCIENCE AND ENGINEERING, v. 26, no. 9, page. 1305-1325
Abstract
In this study, we examined the effects of a hollow cylindrical tube's thickness and material properties on estimated time delay and waveform distortion in a one-dimensional inverse heat transfer analysis model using the thermal resistance method and an input estimation algorithm. Results indicated a persistent time delay for various heat flux amounts applied to different tube thicknesses. As the tube thickness increased, the numerically determined temperature data also experienced a time delay, which affected the inverse heat transfer response curve. Results also indicated that the transient heat flux waveform estimated for different material properties showed higher levels of distortion for materials having relatively low thermal conductivity. These materials also exhibited greater time delays. To address these issues, we applied a Fourier number (a dimensionless number representing the tube's thickness and material properties) and proposed an equation to calculate sharpness, which can subsequently be used to predict probable time delays and heat flux waveform distortion. In conclusion, a correction is required when a low Fourier number is used in inverse heat transfer analysis.
URI
https://www.tandfonline.com/doi/full/10.1080/17415977.2017.1400027https://repository.hanyang.ac.kr/handle/20.500.11754/120124
ISSN
1741-5977; 1741-5985
DOI
10.1080/17415977.2017.1400027
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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