A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model
In this paper, we present a new tool to investigate the interaction of the solar wind with Venus with the approach of a global multifluid magnetohydrodynamics (MHD) model. The continuity, momentum, and energy equations for H ^+ , O ^+ , ${{\rm{O}}}_{2}^{+}$ , and ${\mathrm{CO}}_{2}^{+}$ are solved s...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/acba88 |
| _version_ | 1797701963605868544 |
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| author | Tong Dang Binzheng Zhang Maodong Yan John Lyon Zhonghua Yao Sudong Xiao Tielong Zhang Jiuhou Lei |
| author_facet | Tong Dang Binzheng Zhang Maodong Yan John Lyon Zhonghua Yao Sudong Xiao Tielong Zhang Jiuhou Lei |
| author_sort | Tong Dang |
| collection | DOAJ |
| description | In this paper, we present a new tool to investigate the interaction of the solar wind with Venus with the approach of a global multifluid magnetohydrodynamics (MHD) model. The continuity, momentum, and energy equations for H ^+ , O ^+ , ${{\rm{O}}}_{2}^{+}$ , and ${\mathrm{CO}}_{2}^{+}$ are solved self-consistently together with Faraday’s law. The photochemistry of ionospheric ions are considered as the source term in the density, momentum, and energy equations for each ion. We found that the simulated ionospheric density, temperature, and the bow shock location are consistent with previous observations and simulations for both the solar maximum and minimum. The simulated magnetic fields also agree well with the Venus Express observations. Meanwhile, the high-resolving power and low numerical diffusion makes the model capable of capturing the fine structures of the Venusian-induced magnetosphere, such as the Kelvin–Helmholtz instability and the nightside wake. The escape rates have also been estimated and the results are similar to previous estimations. The high-resolution model could be an efficient tool for the exploration of the fine structures of the Venusian space environment system, and also for the application to other unmagnetized planets. |
| first_indexed | 2024-03-12T04:43:15Z |
| format | Article |
| id | doaj.art-c4f53fb840fc47abbdc407d73aa44cbd |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T04:43:15Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-c4f53fb840fc47abbdc407d73aa44cbd2023-09-03T09:30:41ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194529110.3847/1538-4357/acba88A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD ModelTong Dang0https://orcid.org/0000-0002-6993-6507Binzheng Zhang1https://orcid.org/0000-0002-1555-6023Maodong Yan2https://orcid.org/0000-0002-3926-6733John Lyon3Zhonghua Yao4https://orcid.org/0000-0001-6826-2486Sudong Xiao5Tielong Zhang6Jiuhou Lei7https://orcid.org/0000-0002-4374-5083Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei, People's Republic of China; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei, People's Republic of ChinaDepartment of Earth Sciences, the University of Hong Kong , Pokfulam, Hong Kong SAR, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei, People's Republic of China; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei, People's Republic of ChinaDepartment of Physics and Astronomy , Dartmouth College, Hanover, New Hampshire, USAKey Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics , Chinese Academy of Sciences, Beijing, People's Republic of ChinaHarbin Institute of Technology , Shenzhen, People's Republic of ChinaHarbin Institute of Technology , Shenzhen, People's Republic of China; Space Research Institute , Austrian Academy of Sciences, Graz, AustriaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei, People's Republic of China; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei, People's Republic of ChinaIn this paper, we present a new tool to investigate the interaction of the solar wind with Venus with the approach of a global multifluid magnetohydrodynamics (MHD) model. The continuity, momentum, and energy equations for H ^+ , O ^+ , ${{\rm{O}}}_{2}^{+}$ , and ${\mathrm{CO}}_{2}^{+}$ are solved self-consistently together with Faraday’s law. The photochemistry of ionospheric ions are considered as the source term in the density, momentum, and energy equations for each ion. We found that the simulated ionospheric density, temperature, and the bow shock location are consistent with previous observations and simulations for both the solar maximum and minimum. The simulated magnetic fields also agree well with the Venus Express observations. Meanwhile, the high-resolving power and low numerical diffusion makes the model capable of capturing the fine structures of the Venusian-induced magnetosphere, such as the Kelvin–Helmholtz instability and the nightside wake. The escape rates have also been estimated and the results are similar to previous estimations. The high-resolution model could be an efficient tool for the exploration of the fine structures of the Venusian space environment system, and also for the application to other unmagnetized planets.https://doi.org/10.3847/1538-4357/acba88Magnetohydrodynamical simulationsPlanetary magnetospheresPlanetary ionospheres |
| spellingShingle | Tong Dang Binzheng Zhang Maodong Yan John Lyon Zhonghua Yao Sudong Xiao Tielong Zhang Jiuhou Lei A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model The Astrophysical Journal Magnetohydrodynamical simulations Planetary magnetospheres Planetary ionospheres |
| title | A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model |
| title_full | A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model |
| title_fullStr | A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model |
| title_full_unstemmed | A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model |
| title_short | A New Tool for Understanding the Solar Wind–Venus Interaction: Three-dimensional Multifluid MHD Model |
| title_sort | new tool for understanding the solar wind venus interaction three dimensional multifluid mhd model |
| topic | Magnetohydrodynamical simulations Planetary magnetospheres Planetary ionospheres |
| url | https://doi.org/10.3847/1538-4357/acba88 |
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