Research output: Contribution to journal › Conference article › peer-review
Nonlocal hydrodynamic modeling high-rate shear processes in condensed matter. / Khantuleva, T.; Shalymov, D.
In: Journal of Physics: Conference Series, Vol. 1560, No. 1, 012057, 24.06.2020.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Nonlocal hydrodynamic modeling high-rate shear processes in condensed matter
AU - Khantuleva, T.
AU - Shalymov, D.
PY - 2020/6/24
Y1 - 2020/6/24
N2 - Problem of mathematical modeling high-rate processes in condensed medium is considered by using new nonlocal hydrodynamic approach based on the results of non-equilibrium statistical mechanics and cybernetical physics. Interrelationships between the spatiotemporal correlations in the integral thermodynamic relationships between forces and fluxes and the system internal structure made it possible to describe the self-organization of new dynamic structures in the open system. The temporal structure evolution is described by methods of the control theory of adaptive systems. The proposed approach to the structure evolution allows a new insight into the system state stability. The proposed approach is used to describe high-rate shear flow in the Couette formulation. Explicit approximate solutions to the problem show that steady pure shear flow far from equilibrium looses its stability due to dynamic structure evolution. Near the boundaries there appear layers where continuum mechanics becomes invalid and non-equilibrium interfacial interaction with the walls forms vortex structures. In transient modes a meta-stable state can occur where the system evolution can change its direction due to any weak impact.
AB - Problem of mathematical modeling high-rate processes in condensed medium is considered by using new nonlocal hydrodynamic approach based on the results of non-equilibrium statistical mechanics and cybernetical physics. Interrelationships between the spatiotemporal correlations in the integral thermodynamic relationships between forces and fluxes and the system internal structure made it possible to describe the self-organization of new dynamic structures in the open system. The temporal structure evolution is described by methods of the control theory of adaptive systems. The proposed approach to the structure evolution allows a new insight into the system state stability. The proposed approach is used to describe high-rate shear flow in the Couette formulation. Explicit approximate solutions to the problem show that steady pure shear flow far from equilibrium looses its stability due to dynamic structure evolution. Near the boundaries there appear layers where continuum mechanics becomes invalid and non-equilibrium interfacial interaction with the walls forms vortex structures. In transient modes a meta-stable state can occur where the system evolution can change its direction due to any weak impact.
KW - nonlocal correlation, self-organization, turbulent structure, shear flow, structure evolution, self-consistent modeling
UR - http://www.scopus.com/inward/record.url?scp=85088508545&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1560/1/012057
DO - 10.1088/1742-6596/1560/1/012057
M3 - Conference article
AN - SCOPUS:85088508545
VL - 1560
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012057
T2 - 2020 International Interdisciplinary Scientific Conference on Advanced Element Base of Micro- and Nano-Electronics
Y2 - 20 April 2020 through 23 April 2020
ER -
ID: 61445648