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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Numerical study on the influence of electron temperature on void formation in dusty plasma
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Numerical study on the influence of electron temperature on void formation in dusty plasma

机译：电子温度对尘埃等离子体空隙形成影响的数值研究

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In the past, experiments have proven that the electron temperature in the void is lower than that in the dust cloud. Based on this point, the influence of the spatial distribution of the electron temperature on the void is studied by calculating the fluid equation with explicit ionization, and the images of the circular void and the ring void are obtained by simulation. It is found that when the electron temperature is greater than the threshold value, a stable circular void is generated, and as the electron temperature increases, the time required for the circular void to reach a steady state decreases and its size decreases. This law is not affected by electron temperature spatial distribution set in the center. Combined with the studies of circular void, we speculate that the electron temperature in the ring void is also lower than that in the dust cloud. Through the assumption of the spatial distribution of electron temperature, the simulation results in a ring-shaped void. And the influence of the intensity of the spatial variation of the electron temperature on the ring void is verified. The results show that when the electron temperature change is severe enough, a ring void is generated. And as the intensity increases, the time required for the ring void to reach a steady state decreases, and the size increases slightly.
机译：在过去，实验证明，空隙中的电子温度低于粉尘云中的电子温度。基于这一点，通过计算具有明确电离的流体方程来研究电子温度的空间分布对空隙的影响，并通过模拟获得圆形空隙和环空隙的图像。发现当电子温度大于阈值时，产生稳定的圆形空隙，随着电子温度的增加，圆形空隙达到稳态所需的时间减小，其尺寸减小。该法律不受中心的电子温度空间分布的影响。结合圆形空隙的研究，推测环空隙中的电子温度也低于粉尘云中的电子温度。通过对电子温度的空间分布的假设，模拟导致环形空隙。并且验证了电子温度的空间变化强度对环空隙的影响。结果表明，当电子温度变化足够严重时，产生环空隙。随着强度的增加，环空隙达到稳态所需的时间降低，并且尺寸略有增加。

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