Simultaneous recovery of surface heat flux and thickness of a solid structure by ultrasonic measurements
Simultaneous recovery of surface heat flux and thickness of a solid structure by ultrasonic measurements
复制标题
通过超声波测量同时恢复固体结构的表面热通量和厚度
DOI:
10.3934/era.2021027
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发表时间:
2020-11
影响因子:
0.8
通讯作者:
Liyan Zhu
中科院分区:
文献类型:
--
作者:
Youjun Deng;Hongyu Liu;Xianchao Wang;Dong Wei;Liyan Zhu
This paper is concerned with a practical inverse problem of simultaneously reconstructing the surface heat flux and the thickness of a solid structure from the associated ultrasonic measurements. In a thermoacoustic coupling model, the thermal boundary condition and the thickness of a solid structure are both unknown, while the measurements of the propagation time by ultrasonic sensors are given. We reformulate the inverse problem as a PDE-constrained optimization problem by constructing a proper objective functional. We then develop an alternating iteration scheme which combines the conjugate gradient method and the deepest decent method to solve the optimization problem. Rigorous convergence analysis is provided for the proposed numerical scheme. By using experimental real data from the lab, we conduct extensive numerical experiments to verify several promising features of the newly developed method.
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影响因子:
3.1
作者:
Dai, YH;Yuan, Y
通讯作者:
Yuan, Y
DOI:
--
发表时间:
2019-04
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
Youjun Deng;Hongyu Liu;W. Tsui
通讯作者:
Youjun Deng;Hongyu Liu;W. Tsui
影响因子:
1
作者:
Xinlin Cao;Hongyu Liu
通讯作者:
Xinlin Cao;Hongyu Liu
影响因子:
1.3
作者:
Xinlin Cao;Yi-Hsuan Lin;Hongyu Liu
通讯作者:
Xinlin Cao;Yi-Hsuan Lin;Hongyu Liu
影响因子:
2.7
作者:
POWELL, MJD
通讯作者:
POWELL, MJD