Numerical simulation of atmospheric-pressure surface dielectric barrier discharge on a curved dielectric with a curvilinear mesh
Numerical simulation of atmospheric-pressure surface dielectric barrier discharge on a curved dielectric with a curvilinear mesh
复制标题
DOI：
10.1088/1361-6463/aca61d
复制
发表时间：
2022-11
期刊：
影响因子：
--
通讯作者：
Hideto Tamura;Shintaro Sato;N. Ohnishi
中科院分区：
文献类型：
--
作者：
Hideto Tamura;Shintaro Sato;N. Ohnishi
提出了一种常压表面介质阻挡放电（DBD）的数值模拟方法，该方法采用拟合在弯曲介质表面的结构化曲线网格。该数值方法基于等离子体流体模型，采用广义坐标变换，在计算流体力学领域得到广泛应用。通过对线电极和平面DBD形成的电位分布的计算，验证了所提方法的有效性。利用本文提出的方法对波浪表面上的DBD进行了数值模拟，研究了弯曲表面上DBD的特性。放电锋的传播速度和放电锋的电场强度随表面形状的变化而变化。该方法能够在复杂表面上计算DBD，拓宽了数值模拟在放电物理领域的应用范围。
A numerical simulation method for atmospheric-pressure surface dielectric barrier discharge (DBD) is presented using a structured curvilinear mesh that is fitted to a curved dielectric surface. The numerical method is based on the plasma fluid model with general coordinate transformation, which is widely used in the field of the computational fluid dynamics. The calculations of a potential distribution formed by a line electrode and a planar surface DBD are performed to confirm the validity of the proposed method. We conducted numerical simulations of the DBD on a wavy surface using the proposed method to investigate the characteristics of the DBD on a curved surface. The propagation velocity of the discharge front and the electric field strength of the discharge front changed depending on the surface shape. The proposed method enables the calculation of the DBD on a complex surface and widens the application range of the numerical simulation in the field of discharge physics.