Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++
Abstract
Here a linear plasma device (LPD) module based on the 2D transport module under the BOUT++ framework is developed in this paper to simulate plasma transport in the LPD. The LPD module includes three parts, i.e. magnetic field calculation, simulation mesh generation and plasma transport setup. The magnetic field is calculated with the circular current loop using the location and current information of each coil. The mesh generation code can produce a simulation mesh for LPD by employing the magnetic field. The plasma transport model is based on the reduced Braginskii equations, which consist of the continuity equation, momentum equation, and energy equation. The fluid neutral model is applied for neutral particle simulation. Deuterium (D) and helium (He) ions and atoms can be simulated by the model. The first attempt to simulate plasma transport in the new LPD, called multiple plasma simulation linear plasma device (MPS-LD), is presented using the developed model. The D plasma transport in the MPS-LD is simulated and benchmarked against the two-point model, showing the validation of the BOUT++ simulation. The effects of radial transport on the heat load to the target are studied, which illustrates the significant impact of the radial diffusivities $$D_⟂$$ and $$\mathcal{X}_{⟂i,e}$$ on the plasma. Moreover, the He impurity injection process during the discharge is studied with emphasis on plasma–impurity interactions. The simulation results show that He injection can reduce the plasma energy load to the target significantly, and the efficiency depends on the He source density and injection velocity. The present work provides an alternative and flexible simulation tool for plasma transport in LPDs.
- Authors:
-
- Dalian University of Technology (China)
- Dalian University of Technology (China); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Chinese Academy of Sciences (CAS), Hefei (China)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China; Fundamental Research Funds for the Central Universities
- OSTI Identifier:
- 1893602
- Report Number(s):
- LLNL-JRNL-835857
Journal ID: ISSN 0741-3335; 1054971; TRN: US2310208
- Grant/Contract Number:
- AC52-07NA27344; 12122503; 2018YFE0301101; 2017YFA0402501; DUT21GJ204
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Plasma Physics and Controlled Fusion
- Additional Journal Information:
- Journal Volume: 64; Journal Issue: 11; Journal ID: ISSN 0741-3335
- Publisher:
- IOP Science
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Wang, Yue, Sang, Chaofeng, Li, Nami, Huang, Yao, Zhang, Yanjie, Sun, Changjiang, Bian, Yu, Zhu, Aimin, and Wang, Dezhen. Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++. United States: N. p., 2022.
Web. doi:10.1088/1361-6587/ac8c6a.
Wang, Yue, Sang, Chaofeng, Li, Nami, Huang, Yao, Zhang, Yanjie, Sun, Changjiang, Bian, Yu, Zhu, Aimin, & Wang, Dezhen. Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++. United States. https://doi.org/10.1088/1361-6587/ac8c6a
Wang, Yue, Sang, Chaofeng, Li, Nami, Huang, Yao, Zhang, Yanjie, Sun, Changjiang, Bian, Yu, Zhu, Aimin, and Wang, Dezhen. Thu .
"Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++". United States. https://doi.org/10.1088/1361-6587/ac8c6a. https://www.osti.gov/servlets/purl/1893602.
@article{osti_1893602,
title = {Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++},
author = {Wang, Yue and Sang, Chaofeng and Li, Nami and Huang, Yao and Zhang, Yanjie and Sun, Changjiang and Bian, Yu and Zhu, Aimin and Wang, Dezhen},
abstractNote = {Here a linear plasma device (LPD) module based on the 2D transport module under the BOUT++ framework is developed in this paper to simulate plasma transport in the LPD. The LPD module includes three parts, i.e. magnetic field calculation, simulation mesh generation and plasma transport setup. The magnetic field is calculated with the circular current loop using the location and current information of each coil. The mesh generation code can produce a simulation mesh for LPD by employing the magnetic field. The plasma transport model is based on the reduced Braginskii equations, which consist of the continuity equation, momentum equation, and energy equation. The fluid neutral model is applied for neutral particle simulation. Deuterium (D) and helium (He) ions and atoms can be simulated by the model. The first attempt to simulate plasma transport in the new LPD, called multiple plasma simulation linear plasma device (MPS-LD), is presented using the developed model. The D plasma transport in the MPS-LD is simulated and benchmarked against the two-point model, showing the validation of the BOUT++ simulation. The effects of radial transport on the heat load to the target are studied, which illustrates the significant impact of the radial diffusivities $D_⟂$ and $\mathcal{X}_{⟂i,e}$ on the plasma. Moreover, the He impurity injection process during the discharge is studied with emphasis on plasma–impurity interactions. The simulation results show that He injection can reduce the plasma energy load to the target significantly, and the efficiency depends on the He source density and injection velocity. The present work provides an alternative and flexible simulation tool for plasma transport in LPDs.},
doi = {10.1088/1361-6587/ac8c6a},
journal = {Plasma Physics and Controlled Fusion},
number = 11,
volume = 64,
place = {United States},
year = {Thu Sep 29 00:00:00 EDT 2022},
month = {Thu Sep 29 00:00:00 EDT 2022}
}
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