First CUDA FDTD simulation and experimental verification of the microwave transmission and distribution of the mu10 neutralizer
First CUDA FDTD simulation and experimental verification of the microwave transmission and distribution of the mu10 neutralizer
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DOI：
10.2514/6.2010-6780
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发表时间：
2010-07
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影响因子：
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通讯作者：
M. Bodendorfer;H. Koizumi;S. Hosoda;K. Nishiyama;H. Kuninaka
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作者：
M. Bodendorfer;H. Koizumi;S. Hosoda;K. Nishiyama;H. Kuninaka
作为 mu10 ECR 离子推进器头微波抑制项目的一部分，mu10 中和器成功地采用 3D FDTD 方法进行建模，以创建数值模拟，从而可以了解感兴趣设备内部和外部的详细场结构。为了满足此类模拟的性能要求，利用 NVIDIA 显卡的并行架构创建了大规模并行 CUDA 实现。据报道，与传统的 FORTRAN 3D FDTD 代码相比，速度提高了 1700，从而实现了新的分辨率和运行时性能，迄今为止仅在超级计算机上看到过。我们通过微波传输测量对模拟结果进行了实验验证，以显示模拟的精度和稳定性，并得出新创建的模拟适合mu10系列微波分布的科学研究和工程优化的结论。
As part of the microwave suppression project of the mu10 ECR ion thruster head, the mu10 neutralizer was successfully modeled in a 3D FDTD approach to create a numerical simulation which gives access to the detailed field structure inside and outside of the device of interest. In order to meet the performance requirements of such a simulation, a massive parallel CUDA implementation was created which makes use of the parallel architecture of NVIDIA graphics cards. Compared to a heritage FORTRAN 3D FDTD code, a speed increase of 1700 is reported, enabling a new resolution and run-time performance, so far only seen on supercomputers. We present an experimental verification of the simulation results with a microwave transmission measurement to show the simulation precision and stability, concluding with the newly created simulation to be fit for scientific investigation and engineering optimization of the mu10 series microwave distribution.