This title appears in the Scientific Report :
2022
Please use the identifier:
http://dx.doi.org/10.1063/5.0108811 in citations.
Please use the identifier: http://hdl.handle.net/2128/33026 in citations.
Heat transfer in granular media with weakly interacting particles
Heat transfer in granular media with weakly interacting particles
We study the heat transfer in weakly interacting particle systems in vacuum. The particles have surface roughness with self-affine fractal properties, as expected for mineral particles produced by fracture, e.g., by crunching brittle materials in a mortar, or from thermal fatigue or the impact of mi...
| Personal Name(s): | Persson, Bo (Corresponding author) |
|---|---|
| Biele, J. | |
| Contributing Institute: |
Quanten-Theorie der Materialien; PGI-1 |
| Published in: | AIP Advances, 12 (2022) 10, S. 105307 - |
| Imprint: |
New York, NY
American Inst. of Physics
2022
|
| DOI: |
10.1063/5.0108811 |
| Document Type: |
Journal Article |
| Research Program: |
Topological Matter |
| Link: |
Get full text OpenAccess |
| Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/33026 in citations.
|
We study the heat transfer in weakly interacting particle systems in vacuum. The particles have surface roughness with self-affine fractal properties, as expected for mineral particles produced by fracture, e.g., by crunching brittle materials in a mortar, or from thermal fatigue or the impact of micrometeorites on asteroids. We show that the propagating electromagnetic (EM) waves give the dominant heat transfer for large particles, while for small particles both the evanescent EM-waves and the phononic contribution from the area of real contact are important. As an application, we discuss the heat transfer in rubble pile asteroids. |