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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Continuous non-equilibrium transition driven by the heat flow
AU - Zhang, Yirui
AU - Litniewski, Marek
AU - Makuch, Karol
AU - Zuk, Pawel J.
AU - Maciolek, Anna
AU - Holyst, Robert
N1 - © 2021 American Physical Society
PY - 2021/8/2
Y1 - 2021/8/2
N2 - We discovered an out-of-equilibrium transition in the ideal gas between two walls, divided by an inner, adiabatic, movable wall. The system is driven out-of-equilibrium by supplying energy directly into the volume of the gas. At critical heat flux, we have found a continuous transition to the state with a low-density, hot gas on one side of the movable wall and a dense, cold gas on the other side. Molecular dynamic simulations of the soft-sphere fluid confirm the existence of the transition in the interacting system. We introduce a stationary state Helmholtz-like function whose minimum determines the stable positions of the internal wall. This transition can be used as a paradigm of transitions in stationary states and the Helmholtz-like function as a paradigm of the thermodynamic description of these states.
AB - We discovered an out-of-equilibrium transition in the ideal gas between two walls, divided by an inner, adiabatic, movable wall. The system is driven out-of-equilibrium by supplying energy directly into the volume of the gas. At critical heat flux, we have found a continuous transition to the state with a low-density, hot gas on one side of the movable wall and a dense, cold gas on the other side. Molecular dynamic simulations of the soft-sphere fluid confirm the existence of the transition in the interacting system. We introduce a stationary state Helmholtz-like function whose minimum determines the stable positions of the internal wall. This transition can be used as a paradigm of transitions in stationary states and the Helmholtz-like function as a paradigm of the thermodynamic description of these states.
KW - cond-mat.stat-mech
U2 - 10.1103/PhysRevE.104.024102
DO - 10.1103/PhysRevE.104.024102
M3 - Journal article
VL - 104
JO - Physical Review E
JF - Physical Review E
SN - 2470-0045
IS - 2
M1 - 024102
ER -