Inverse heat transfer analysis to determine the temperature or phase change-dependent refractive index of semitransparent materials

Wei, Linyang; Qi, Hong; Niu, Zhi-Tian; Wen, Shuangchun; Ren, Ya-Tao

doi:10.1080/17415977.2020.1798947

Cited by 5 publications

(1 citation statement)

References 55 publications

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“…The refractive index is inverted from the radiative response of the boundary by a Stochastic Particle Swarm Optimization (SPSO) algorithm. Through the sensitivity analysis, it is proved that this method can accurately deduce the refractive index from the radiation response on the two boundaries [23]. Zhao et al studied linear and nonlinear gradient refractive index distributions based on discrete coordinate equations.…”

Section: Introductionmentioning

confidence: 99%

Inverse estimation of wall temperature measurement under dispersion medium shielding based on CMA-ES algorithm

Qian

Zhu

et al. 2022

STET

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Special equipment is often accompanied by the phenomenon of high temperature and high pressure in operation, and it needs to be measured. With the deepening of research engineering application, some new problems appear, such as how to accurately measure and control the combustion temperature field in the hydrocarbon energy system, carry out combustion diagnosis, control the combustion temperature, minimize the generation of pollutants, put forward higher requirements for measurement technology. High temperature has a core impact on equipment safety, which is a key index that must be considered in design and material selection. Near the surface of these high-temperature objects, there are usually high-temperature translucent media and particles produced by combustion, which have a great impact on radiation temperature measurement. At the same time, with the change of temperature and concentration, these translucent media often have gradient refractive index change, which has a certain impact on radiation temperature measurement. These shielding objects interfere with radiation and affect the accuracy of measurement. This topic mainly focuses on the theoretical and experimental research of this kind of problem. The inversion algorithm of wall temperature reconstruction under the shielding condition of dispersed medium is proposed. Under the condition of introducing different measurement errors, the algorithm is verified, and the corresponding numerical simulation is carried out to verify the feasibility of the algorithm model.

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Section: Introductionmentioning

confidence: 99%