Directed motion and useful work from an isotropic nonequilibrium distribution

Gelin, M.F., and Kosov, D.S. (2008) Directed motion and useful work from an isotropic nonequilibrium distribution. Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), 77 (1). 011115. pp. 1-5.

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We demonstrate that a gas of classical particles trapped in an external asymmetric potential undergoes a quasiperiodic motion, if the temperature of its initial velocity distribution T(NE) differs from the equilibrium temperature T(eq). The magnitude of the effect is determined by the value of T(NE)−T(eq), and the direction of the motion is determined by the sign of this expression. The "loading" and "unloading" of the gas particles change directions of their motion, thereby creating a possibility of shuttle-like motion. The system works as a Carnot engine where the heat flow between kinetic and potential parts of the nonequilibrium distribution produces the useful work.

Item ID: 26211
Item Type: Article (Research - C1)
ISSN: 1550-2376
Date Deposited: 10 Apr 2013 02:35
FoR Codes: 02 PHYSICAL SCIENCES > 0203 Classical Physics > 020304 Thermodynamics and Statistical Physics @ 50%
03 CHEMICAL SCIENCES > 0307 Theoretical and Computational Chemistry > 030704 Statistical Mechanics in Chemistry @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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