期刊
JOURNAL OF STATISTICAL PHYSICS
卷 141, 期 5, 页码 757-766出版社
SPRINGER
DOI: 10.1007/s10955-010-0076-8
关键词
Current; Anomalous Fourier law; Hard particle gas
资金
- NSF [DMR-044-2066]
- AFOSR [AF-FA9550-10]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0802120] Funding Source: National Science Foundation
We study by means of numerical simulations the velocity reversal model, a one-dimensional mechanical model of heat transport introduced in 1985 by Ianiro and Lebowitz. Our numerical results indicate that this model, which does not conserve momentum, exhibits nevertheless an anomalous Fourier's law similar to the ones previously observed in momentum-conserving models. This disagrees with what can be expected by solving the Boltzmann equation (BE) for this system. The pair correlation velocity field also looks very different from the correlations usually seen in diffusive systems, and shares some similarity with those of momentum-conserving heat transport models.
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