{"id":166506,"date":"2022-02-17T15:47:04","date_gmt":"2022-02-17T15:47:04","guid":{"rendered":"\/forum\/forums\/topic\/using-periodic-bc-in-dgtd\/"},"modified":"2022-02-18T19:09:28","modified_gmt":"2022-02-18T19:09:28","slug":"using-periodic-bc-in-dgtd","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/using-periodic-bc-in-dgtd\/","title":{"rendered":"Using periodic BC in DGTD"},"content":{"rendered":"
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Hi,<\/p>\n

I have digitized a metallic planar particle distribution from an SEM image. The particles are randomly distributed. Whole structure is so large to simulate so I want to simulate a smaller portion and use a periodic BC. As we can see from the attached image, boundaries (have to) intersect some of the particles (spheres). I know that these sliced pieces will create anomalies but as the area of the section grows I believe it will yield a realistic result. When I use FDTD I can use periodic BC which intersects with particles; however with DGTD I recieve "Failed to match periodic face" error. Is it possible to use a periodic boundary condition which is intersecting a particle (whose other half does not match at the other boundary)?<\/p>\n

Kind regards,<\/p>\n

Refet<\/p>\n

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\nintersecting boundary.jpg
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