Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials
In order to deeply study the heat conduction of nanoporous aerogel, a model of gas-solid heat conduction was established based on the microstructure of aerogel. The model was divided into two subdomains with uniform mesh because of the different gas-solid characteristics, and simulation was performe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/19/3424 |
| _version_ | 1797477740737200128 |
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| author | Yafen Han Shuai Li Haidong Liu Yucong Li |
| author_facet | Yafen Han Shuai Li Haidong Liu Yucong Li |
| author_sort | Yafen Han |
| collection | DOAJ |
| description | In order to deeply study the heat conduction of nanoporous aerogel, a model of gas-solid heat conduction was established based on the microstructure of aerogel. The model was divided into two subdomains with uniform mesh because of the different gas-solid characteristics, and simulation was performed on each domain using the lattice Boltzmann method. The value of temperature on the boundaries of subdomains was determined by interpolation. Finally, the temperature distribution and the thermal conductivity were maintained. It can be concluded that when the gas-phase scale was fixed, the temperature distribution of the solid phase became more uniform when the scale increased; when the solid-phase scale was fixed, the temperature jump on the gas-solid interface decreased with the increase in the gas-phase scale; and the thermal conductivity of gas-solid coupling varied with the scale of the gas phase or solid phase, showing a scale effect in varying degrees. |
| first_indexed | 2024-03-09T21:21:59Z |
| format | Article |
| id | doaj.art-b008fa9900044796b791d6f88e346cc1 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T21:21:59Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-b008fa9900044796b791d6f88e346cc12023-11-23T21:19:50ZengMDPI AGNanomaterials2079-49912022-09-011219342410.3390/nano12193424Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous MaterialsYafen Han0Shuai Li1Haidong Liu2Yucong Li3School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132013, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin 132013, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin 132013, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin 132013, ChinaIn order to deeply study the heat conduction of nanoporous aerogel, a model of gas-solid heat conduction was established based on the microstructure of aerogel. The model was divided into two subdomains with uniform mesh because of the different gas-solid characteristics, and simulation was performed on each domain using the lattice Boltzmann method. The value of temperature on the boundaries of subdomains was determined by interpolation. Finally, the temperature distribution and the thermal conductivity were maintained. It can be concluded that when the gas-phase scale was fixed, the temperature distribution of the solid phase became more uniform when the scale increased; when the solid-phase scale was fixed, the temperature jump on the gas-solid interface decreased with the increase in the gas-phase scale; and the thermal conductivity of gas-solid coupling varied with the scale of the gas phase or solid phase, showing a scale effect in varying degrees.https://www.mdpi.com/2079-4991/12/19/3424heat transfernanomaterialsaerogeltemperature distributionthermal conductivity |
| spellingShingle | Yafen Han Shuai Li Haidong Liu Yucong Li Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials Nanomaterials heat transfer nanomaterials aerogel temperature distribution thermal conductivity |
| title | Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials |
| title_full | Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials |
| title_fullStr | Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials |
| title_full_unstemmed | Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials |
| title_short | Lattice Boltzmann Simulation of Coupling Heat Transfer between Solid and Gas Phases of Nanoporous Materials |
| title_sort | lattice boltzmann simulation of coupling heat transfer between solid and gas phases of nanoporous materials |
| topic | heat transfer nanomaterials aerogel temperature distribution thermal conductivity |
| url | https://www.mdpi.com/2079-4991/12/19/3424 |
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