Transition from the incoherent to the coherent regime for propagative-wave based thermal radiation

Eurotherm Conference 105: Computational Thermal Radiation in Participating Media V

物理学;计算机科学

Tsurimaki, Y.^1,2 ; Chapuis, P.-O.^1 ; Okajima, J.^2 ; Komiya, A.^2 ; Maruyama, S.^2 ; Vaillon, R.^1

Université de Lyon, CNRS, INSA-Lyon, UCBL, CETHIL, UMR5008, Villeurbanne

F-69621, France^1

Institute of Fluid Science, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai

980-8577, Japan^2

关键词: Coherent effect;    Fluctuational electrodynamics;    Net heat flux;    Radiation intensity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/676/1/012023/pdf
DOI  :  10.1088/1742-6596/676/1/012023

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The transition from the incoherent to the coherent regime for thermal radiation between bodies trough a transparent medium is discussed. The canonical case of two parallel semi-infinite planar media is used as a basis to provide an insight into the physics and quantities ruling the distance at which coherent effects have an impact on the propagative component of the net heat flux exchanged. A practical criterion is proposed to define the distance below which radiation intensity framework should not be used, but instead fluctuational electrodynamics.