Molecular simulation of thermal conductivity of rarefied gas nanosuspensions
The thermal conductivity coefficient of rarefied gas nanosuspensions is modelled using kinetic theory and stochastic molecular modelling (SMM) method. Gas nanosuspensions based on rarefied argon with spherical zinc nanoparticles with diameters of 5, 10 and 20 nm at temperature of 300 K and atmospher...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_01004.pdf |
| _version_ | 1797345236351975424 |
|---|---|
| author | Krasnolutskii Sergei Lezhnev Eugene Rudyak Valery |
| author_facet | Krasnolutskii Sergei Lezhnev Eugene Rudyak Valery |
| author_sort | Krasnolutskii Sergei |
| collection | DOAJ |
| description | The thermal conductivity coefficient of rarefied gas nanosuspensions is modelled using kinetic theory and stochastic molecular modelling (SMM) method. Gas nanosuspensions based on rarefied argon with spherical zinc nanoparticles with diameters of 5, 10 and 20 nm at temperature of 300 K and atmospheric pressure are considered. The interactions of carrier gas molecules, a carrier gas molecule with a nanoparticle, and nanoparticles between themselves are described using Lennard-Jones, Rudyak–Krasnolutskii (RK) and Rudyak–Krasnolutskii–Ivanov (RKI) potentials respectively. It is shown that the thermal conductivity of the Ar-Zn gas nanosuspensions is lower than one of pure argon and decreases with an increase in the volume concentration of nanoparticles and a decrease in their size. In particular, the thermal conductivity of a gas nanosuspension with particles with a diameter of 5 nm at their volume concentration 0.001 drops by 8.2% compared to pure argon. The results obtained using both methods are consistent well. |
| first_indexed | 2024-03-08T11:14:34Z |
| format | Article |
| id | doaj.art-98480dbbae4b4679a3d5a7cc333978b7 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-08T11:14:34Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-98480dbbae4b4679a3d5a7cc333978b72024-01-26T10:38:23ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014590100410.1051/e3sconf/202345901004e3sconf_sts-39_01004Molecular simulation of thermal conductivity of rarefied gas nanosuspensionsKrasnolutskii Sergei0Lezhnev Eugene1Rudyak Valery2Novosibirsk State University of Architecture and Civil Engineering (Sibstrin), Theoretical Mechanics DepartmentNovosibirsk State University of Architecture and Civil Engineering (Sibstrin), Theoretical Mechanics DepartmentNovosibirsk State University of Architecture and Civil Engineering (Sibstrin), Theoretical Mechanics DepartmentThe thermal conductivity coefficient of rarefied gas nanosuspensions is modelled using kinetic theory and stochastic molecular modelling (SMM) method. Gas nanosuspensions based on rarefied argon with spherical zinc nanoparticles with diameters of 5, 10 and 20 nm at temperature of 300 K and atmospheric pressure are considered. The interactions of carrier gas molecules, a carrier gas molecule with a nanoparticle, and nanoparticles between themselves are described using Lennard-Jones, Rudyak–Krasnolutskii (RK) and Rudyak–Krasnolutskii–Ivanov (RKI) potentials respectively. It is shown that the thermal conductivity of the Ar-Zn gas nanosuspensions is lower than one of pure argon and decreases with an increase in the volume concentration of nanoparticles and a decrease in their size. In particular, the thermal conductivity of a gas nanosuspension with particles with a diameter of 5 nm at their volume concentration 0.001 drops by 8.2% compared to pure argon. The results obtained using both methods are consistent well.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_01004.pdf |
| spellingShingle | Krasnolutskii Sergei Lezhnev Eugene Rudyak Valery Molecular simulation of thermal conductivity of rarefied gas nanosuspensions E3S Web of Conferences |
| title | Molecular simulation of thermal conductivity of rarefied gas nanosuspensions |
| title_full | Molecular simulation of thermal conductivity of rarefied gas nanosuspensions |
| title_fullStr | Molecular simulation of thermal conductivity of rarefied gas nanosuspensions |
| title_full_unstemmed | Molecular simulation of thermal conductivity of rarefied gas nanosuspensions |
| title_short | Molecular simulation of thermal conductivity of rarefied gas nanosuspensions |
| title_sort | molecular simulation of thermal conductivity of rarefied gas nanosuspensions |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_01004.pdf |
| work_keys_str_mv | AT krasnolutskiisergei molecularsimulationofthermalconductivityofrarefiedgasnanosuspensions AT lezhneveugene molecularsimulationofthermalconductivityofrarefiedgasnanosuspensions AT rudyakvalery molecularsimulationofthermalconductivityofrarefiedgasnanosuspensions |