A volume-weighting cloud-in-cell model for simulation of axial symmetrical plasmas
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- A volume-weighting cloud-in-cell model for simulation of axial symmetrical plasmas
- 发表刊物：
- Plasma Science & Technology
- 摘要：
- In particle-in-cell (PIC) simulation, all cases of particle displacement in discrete grid are
generalized as an internal-one-cell case. Based on the generalized case, we develop a volume-weighting
cloud-in-cell (VW-CIC) model to couple fields and particles. This model is first-order accurate in cylindrical
systems, and it is incorporated in a PIC code. A planar diode with finite-radius circular emitter is simulated
with the code. The results show that the VW-CIC model is more accurate and lower noisy than the
conventional area-weighting cloud-in-cell (AW-CIC) model, especially on those points near the axis, and the
two-dimensional (2-D) space-charge-limited current density obtained from VW-CIC model is in better
agreement with Lau’s theory prediction. This model can be used in 2.5-D PIC simulation of axial symmetrical plasmas
- 合写作者：
- LI Yongdong, HE Feng, LIU Chunliang
- 卷号：
- 7(1)
- 页面范围：
- 2653–2656
- 是否译文：
- 否
- 发表时间：
- 2005-02-01
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