A nonequilibrium distribution function of microscopic thermal current is studied by a direct numerical simulation in a thermal conducting steady state of particle systems. Two characteristic temperatures of the thermal current are investigated on the basis of the distribution. It is confirmed that the temperature depends on the current direction; Parallel temperature to the heat-flux is higher than antiparallel one. The difference between the parallel temperature and the antiparallel one is proportional to a macroscopic temperature gradient. ©2009 The Physical Society of Japan.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-I1-005-04
Acknowledgements: This work was partly supported by a Grant-in-Aid forScientific Research (B) No. 19340110, a Grant-in-Aid forYoung Scientists (B) No. 19740238 from the MinistryEducation, Culture, Sports, Science and Technology Japan,and the Global Research Partnership of King AbdullahUniversity of Science and Technology (KUK-I1-005-04).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.