Boundary conditions
Thermal radiation in semitransparent media

Add to my library

BE8212 V1 Article

Boundary conditions


Thermal radiation in semitransparent media

Authors : Denis LEMONNIER, Pascal BOULET

Publication date: June 10, 2025, Review date: November 10, 2024

Add to my library Add to my library

Logo Techniques de l'Ingenieur You do not have access to this resource.
Request your free trial access! Free trial

Already subscribed?

7. Boundary conditions

Once the direction of propagation has been set, the radiative transfer equation is a hyperbolic partial differential equation. It is of degree one with respect to each of the spatial variables ( x , y , z in Cartesian coordinates) or, in terms of curvilinear abscissa, with respect to the s variable.

To integrate the RTE, we therefore need to know the value of the intensity emanating from the boundary where each optical path starts. Restricting ourselves to the case of opaque and diffuse walls (see the notes below remark 21), these are conditions of the form:

Iλ(
You do not have access to this resource.
Logo Techniques de l'Ingenieur

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed?


Article included in this offer

"Physics of energy"

( 72 articles )

Complete knowledge base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

View offer details

Dans les ressources documentaires

Actifs cosmétiques anti-lumière bleue

La lumière bleue correspond aux longueurs d’onde courtes du spectre visible (380-500 nm) émises par le so...

Optoélectronique-hyperfréquence - Contrôle optique de fonctions électroniques

Le présent article décrit les interactions entre une onde lumière et un matériau semi-conducteur en vue d...

Matériaux organiques pour les lasers

Des dispositifs à base de matériaux organiques sont présents dans de nombreux domaines de la photonique, ...

WhitePaper
6 May 2015
Les matériaux du futur

Opale polymère, aérogel, gel contractile... Ces matériaux innovants ont des propriétés étonnantes !

Tous les livres blancs
Toutes les actualités
Contact us