Yang Wang, Ling-Ling Zhao. Viscoelastic relaxation time of the monoatomic Lennard-Jones system [J]. Acta Physica Sinica, 2020, 69(12): 123101-1
- Acta Physica Sinica
- Vol. 69, Issue 12, 123101-1 (2020)
Fig. 1. L-J fluid simulation system.
Fig. 2. Verification of viscosity of L-J fluid at different temperatures.
Fig. 3. Verification of the radial distribution function of L-J fluid: (a)
; (b)
.
; (b)
. Fig. 4. Radial distribution function of L-J fluid at
with different temperatures.
with different temperatures. Fig. 5. Storage modulus and loss modulus: (a) Storage modulus and loss modulus at different temperatures; (b) viscoelastic characteristic relaxation time
.
. Fig. 6. 
,
,
,
under different T ,
, ε and σ : (a) Different temperatures; (b) different densities; (c) different distances between atoms when potential is 0; (d) different potential well depths.
,
,
,
under different , Fig. 7. Distribution of the dissociation or association time of L-J fluid at
, ε = 1, σ = 1
, Fig. 8. Schematic diagram of Kramers’ rate theory.
Fig. 9. The quantity curves of A and A—A: (a) Different temperatures; (b) different densities; (c) different distances between atoms when potential is 0; (d) different potential well depths.
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