Shock-Induced Mesoparticles and Turbulence Occurrence
The development of a new approach to describe turbulent motions in condensed matter on the basis of nonlocal modeling of highly non-equilibrium processes in open systems is performed in parallel with an experiment studying the mesostructure of dynamically deformed solids. The shock-induced mesostruc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Particles |
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| Online Access: | https://www.mdpi.com/2571-712X/5/3/32 |
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| author | Tatiana A. Khantuleva Yurii I. Meshcheryakov |
| author_facet | Tatiana A. Khantuleva Yurii I. Meshcheryakov |
| author_sort | Tatiana A. Khantuleva |
| collection | DOAJ |
| description | The development of a new approach to describe turbulent motions in condensed matter on the basis of nonlocal modeling of highly non-equilibrium processes in open systems is performed in parallel with an experiment studying the mesostructure of dynamically deformed solids. The shock-induced mesostructure formation inside the propagating waveform registered in real time allows the transient stages of non-equilibrium processes to be qualitatively and quantitatively revealed. A new nonlocal approach, developed on the basis of the nonlocal and retarded transport equations obtained within the non-equilibrium statistical physics, is used to describe the occurrence of turbulence. Within the approach, the reason for the transition to turbulence is that the non-equilibrium spatiotemporal correlation function generates the dynamic structures in the form of finite-size clusters on the mesoscale, with almost identical values of macroscopic densities moving as almost solid particles that can interact and rotate. The fragmentation of spatiotemporal correlations upon impact forms the mesoparticles that move at different speeds and transfer mass, momentum and energy-like wave packets. The movements recorded simultaneously at two scale levels indicate the energy exchange between them. Its description required a redefinition of the concept of energy far from local thermodynamic equilibrium. The experimental results show that the irreversible part of the dynamic mesostructure remains frozen into material as a new defect. |
| first_indexed | 2024-03-09T22:54:25Z |
| format | Article |
| id | doaj.art-a33aa9e6bcfe430e878ed54911908417 |
| institution | Directory Open Access Journal |
| issn | 2571-712X |
| language | English |
| last_indexed | 2024-03-09T22:54:25Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Particles |
| spelling | doaj.art-a33aa9e6bcfe430e878ed549119084172023-11-23T18:14:54ZengMDPI AGParticles2571-712X2022-09-015340742510.3390/particles5030032Shock-Induced Mesoparticles and Turbulence OccurrenceTatiana A. Khantuleva0Yurii I. Meshcheryakov1Physical Mechanics Department, St. Petersburg State University, 28 Universitetsky pr., 198504 St. Petersburg, RussiaInstitute of Problems of Mechanical Engineering, Russian Academy of Science, 61 Bolshoy pr., 199178 St. Petersburg, RussiaThe development of a new approach to describe turbulent motions in condensed matter on the basis of nonlocal modeling of highly non-equilibrium processes in open systems is performed in parallel with an experiment studying the mesostructure of dynamically deformed solids. The shock-induced mesostructure formation inside the propagating waveform registered in real time allows the transient stages of non-equilibrium processes to be qualitatively and quantitatively revealed. A new nonlocal approach, developed on the basis of the nonlocal and retarded transport equations obtained within the non-equilibrium statistical physics, is used to describe the occurrence of turbulence. Within the approach, the reason for the transition to turbulence is that the non-equilibrium spatiotemporal correlation function generates the dynamic structures in the form of finite-size clusters on the mesoscale, with almost identical values of macroscopic densities moving as almost solid particles that can interact and rotate. The fragmentation of spatiotemporal correlations upon impact forms the mesoparticles that move at different speeds and transfer mass, momentum and energy-like wave packets. The movements recorded simultaneously at two scale levels indicate the energy exchange between them. Its description required a redefinition of the concept of energy far from local thermodynamic equilibrium. The experimental results show that the irreversible part of the dynamic mesostructure remains frozen into material as a new defect.https://www.mdpi.com/2571-712X/5/3/32turbulencenon-equilibrium correlationself-organizationmesoparticlewave packetshock-induced waveform |
| spellingShingle | Tatiana A. Khantuleva Yurii I. Meshcheryakov Shock-Induced Mesoparticles and Turbulence Occurrence Particles turbulence non-equilibrium correlation self-organization mesoparticle wave packet shock-induced waveform |
| title | Shock-Induced Mesoparticles and Turbulence Occurrence |
| title_full | Shock-Induced Mesoparticles and Turbulence Occurrence |
| title_fullStr | Shock-Induced Mesoparticles and Turbulence Occurrence |
| title_full_unstemmed | Shock-Induced Mesoparticles and Turbulence Occurrence |
| title_short | Shock-Induced Mesoparticles and Turbulence Occurrence |
| title_sort | shock induced mesoparticles and turbulence occurrence |
| topic | turbulence non-equilibrium correlation self-organization mesoparticle wave packet shock-induced waveform |
| url | https://www.mdpi.com/2571-712X/5/3/32 |
| work_keys_str_mv | AT tatianaakhantuleva shockinducedmesoparticlesandturbulenceoccurrence AT yuriiimeshcheryakov shockinducedmesoparticlesandturbulenceoccurrence |