TY  - JOUR
AU  - Persson, Bo
AU  - Biele, J.
TI  - Heat transfer in granular media with weakly interacting particles
JO  - AIP Advances
VL  - 12
IS  - 10
SN  - 2158-3226
CY  - New York, NY
PB  - American Inst. of Physics
M1  - FZJ-2022-03380
SP  - 105307 -
PY  - 2022
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000876209200001
DO  - DOI:10.1063/5.0108811
UR  - https://juser.fz-juelich.de/record/909741
ER  -