Radiation

From Thermal-FluidsPedia

The third mode of heat transfer is radiation. The transmission of thermal radiation does not require the presence of a propagating medium and, therefore can occur in a vacuum. Thermal radiation is a form of energy emitted by matter at a nonzero temperature and its wavelength is primarily in the range between 0.1 to 10 μm. Emission can be from a solid surface as well as from a liquid or gas. Thermal radiation may be considered to be the propagation of electromagnetic waves or alternately as the propagation of a collection of particles, such as photons or quanta of photons.

• Basics
• Black Body

Planck distribution, Blackbody fraction.

• Radiation properties of real surface

Opaque Surface Property Definitions, Predictions of real surface properties

• Application and exploitation of radiative properties

Spacecraft thermal design, Solar thermal energy collectors, Selective surface for radiation

• High-energy radiation-surface interactions

Nanoscale surface modification for tailoring radiation properties, Macroscale laser-surface interactions

• Light pipes and fiber optics
• Infrared sensing, cameras and photography
• Contemporary applications and research of radiative properties
• Radiative Transfer through Transparent Media

Radiative heat transfer between two areas, configuration factor, and configuration factor algebra.

• The Enclosure; The Net Radiation Method for Diffuse Surfaces

Radiosity, Irradiation, and Net Energy Transfer, Gray Surfaces, Nongray Surfaces, Surfaces with Varying Temperature, Radiative Flux, or Properties

• Multimode Heat Transfer with Radiation
• Inverse Radiation Problems

Inverse radiation design problem, Regularization for inverse radiation, Unresolved problems in inverse radiation

• Radiation in participating media

Absorption, Emission and Scattering from a Medium, Properties of Participating Media, Radiative transfer equation, Some Limiting Solutions for Radiative Transfer

• Applications of Radiative Transfer

Radiation measurement and remote sensing, Atmospheric Phenomena Caused by Scattering, Pollution and greenhouse effect

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