Development of advanced materials resistant to high temperature, needed namely for the design of heat storage for low-energy and passive buildings, requires simple, inexpensive and reliable methods of identification of their temperature-sensitive thermal conductivity and diffusivity, covering both well-advised experimental setting and implementation of robust and effective computational algorithms. Special geometrical configurations offer a possibility of quasi-analytical evaluation of temperature development for direct problems, whereas inverse problems of simultaneous evaluation of thermal conductivity and diffusivity must be handled carefully, using some least-squares (minimum variance) arguments. This paper demonstrates the proper mathematical and computational approach to such model problem, thanks to the radial symmetry of hot-wire measurements, including its numerical implementation.
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7 July 2016
THERMOPHYSICS 2016: 21st International Meeting
12–14 October 2016
Terchova, Slovakia
Research Article|
July 07 2016
Computational aspects of hot-wire identification of thermal conductivity and diffusivity under high temperature Available to Purchase
Jiří Vala;
Jiří Vala
a)
1
Brno University of Technology
, Faculty of Civil Engineering, 602 00 Brno, Veveří 331/95, Czech Republic
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Petra Jarošová
Petra Jarošová
b)
1
Brno University of Technology
, Faculty of Civil Engineering, 602 00 Brno, Veveří 331/95, Czech Republic
Search for other works by this author on:
Jiří Vala
1,a)
Petra Jarošová
1,b)
1
Brno University of Technology
, Faculty of Civil Engineering, 602 00 Brno, Veveří 331/95, Czech Republic
a)
Corresponding author: [email protected]
AIP Conf. Proc. 1752, 040029 (2016)
Citation
Jiří Vala, Petra Jarošová; Computational aspects of hot-wire identification of thermal conductivity and diffusivity under high temperature. AIP Conf. Proc. 7 July 2016; 1752 (1): 040029. https://doi.org/10.1063/1.4955260
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