Ultrafast radiative transfer characteristics in multilayer inhomogeneous 3d media subjected to a collimated short square pulse train

Masato Akamatsu, Zhixiong Guo

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We carried out 3D numerical modeling to understand ultrafast radiative transfer characteristics in multilayer inhomogeneous media, irradiated by a collimated short square pulse train, using the discrete-ordinates method (DOM) in combination with Duhamel's superposition theorem. The DOM was used to first obtain the temporal solution subjected to a single unit step pulse. Duhamel's superposition theorem was then used to reconstruct the response to different kinds of pulse trains. The efficiency of superposition was shown via CPU time comparison with and without use of superposition. The reflectance and transmit ance signals are characterized, focusing on the effects of optical thickness, scat ering albedo, pulse width and interval, and detection position.

Original languageEnglish (US)
Pages (from-to)633-651
Number of pages19
JournalHeat Transfer Research
Volume47
Issue number7
DOIs
StatePublished - 2016

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Keywords

  • Discrete-ordinates method
  • Inhomogeneous media
  • Radiative transfer
  • Short pulse
  • Superposition

Fingerprint

Dive into the research topics of 'Ultrafast radiative transfer characteristics in multilayer inhomogeneous 3d media subjected to a collimated short square pulse train'. Together they form a unique fingerprint.

Cite this