论文标题

基于边界湍流的实验图像,通过漂移减少的Braginskii理论进行了深度电场预测

Deep electric field predictions by drift-reduced Braginskii theory with plasma-neutral interactions based upon experimental images of boundary turbulence

论文作者

Mathews, Abhilash, Hughes, Jerry, Terry, James, Baek, Seung-Gyou

论文摘要

We present 2-dimensional turbulent electric field calculations via physics-informed deep learning consistent with (i) drift-reduced Braginskii theory under the framework of an axisymmetric fusion plasma with purely toroidal field and (ii) experimental estimates of the fluctuating electron density and temperature on open field lines obtained from analysis of gas puff imaging of a discharge on the Alcator C-Mod tokamak.发现从局部膨胀的原子氦对粒子和降低的等离子湍流模型中能源的效果包括在内,可以增强电场与电子压力之间的相关性。中性物也与扩大湍流场振幅的分布并增加$ {\ bf e \ times b} $剪切率直接相关。这通过求解与偏微分方程和数据一致的非线性动力学来证明血浆实验中的一种新方法,而无需编码显式边界或初始条件。

We present 2-dimensional turbulent electric field calculations via physics-informed deep learning consistent with (i) drift-reduced Braginskii theory under the framework of an axisymmetric fusion plasma with purely toroidal field and (ii) experimental estimates of the fluctuating electron density and temperature on open field lines obtained from analysis of gas puff imaging of a discharge on the Alcator C-Mod tokamak. The inclusion of effects from the locally puffed atomic helium on particle and energy sources within the reduced plasma turbulence model are found to strengthen correlations between the electric field and electron pressure. The neutrals are also directly associated with broadening the distribution of turbulent field amplitudes and increasing ${\bf E \times B}$ shearing rates. This demonstrates a novel approach in plasma experiments by solving for nonlinear dynamics consistent with partial differential equations and data without encoding explicit boundary nor initial conditions.

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