Ultrafast radiative heat transfer

Radiative heat transfer: many-body effects

Heat transfer by electromagnetic radiation is one of the common methods of energy transfer between objects. Using the fluctuation-dissipation theorem, we have studied the effect of particle arrangement in the transmission of radiative heat in many-body systems. In order to show the effect of the structure morphology on the collective properties, the radiative heat transfer is studied and the re...

Heat Transfer in Ultrafast Laser Tissue Welding

* Corresponding author, [email protected] ABSTRACT The objective of this research is to develop an appropriate model for simulating the transient heat transfer processes in tissue welding subject to irradiation of ultrashort laser pulses. The ultrafast laser tissue welding process is modeled in three steps. First, there is an immediate local temperature response due to radiation absorption d...

Calculating Radiative Heat Transfer in anAxisymmetric Closed

Radiative heat transfer plays an important part in the Czochralski crystal growth process , but it is diicult to simulate numerically because of the amount of computational time required. This paper describes the parallelization of a code simulating radiative heat transfer in the crystal and in the region above the melt containing gas under the assumption of axial symmetry. This code allows arb...

Radiative heat transfer between metallic nanoparticles

Many-body radiative heat transfer theory.

In this Letter, an N-body theory for the radiative heat exchange in thermally nonequilibrated discrete systems of finite size objects is presented. We report strong exaltation effects of heat flux which can be explained only by taking into account the presence of many-body interactions. Our theory extends the standard Polder and van Hove stochastic formalism used to evaluate heat exchanges betw...