{"id":371173,"date":"2024-07-09T18:22:19","date_gmt":"2024-07-09T18:22:19","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371173\/"},"modified":"2024-07-09T18:22:19","modified_gmt":"2024-07-09T18:22:19","slug":"371173","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371173\/","title":{"rendered":"Reply To: Waveguide bending Loss using Lumerical FDE and FEEM"},"content":{"rendered":"<p>&lt;p&gt;If the loss is small, it will be sensitive.&lt;\/p&gt;&lt;p&gt;You may need to do converge test with fixed mesh size, not the fixed mesh points in FDE. In FEEM you may need to use higher polynominal orders, or finer edge length, or both. Since the two solvers use very different meshing techniques, it is understandable that if the mesh is not fine enough and the simulation region is not large enough, there are some discrapancy, in particular the small loss.&nbsp; In addition, make sure the material data is exactly the same.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-371173","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"If the loss is small, it will be sensitive.You may need to do converge test with fixed mesh size, not the fixed mesh points in FDE. In FEEM you may need to use higher polynominal orders, or finer edge length, or both. Since the two solvers use very different meshing techniques, it is understandable that\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371173\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Waveguide bending Loss using Lumerical FDE and FEEM | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"If the loss is small, it will be sensitive.You may need to do converge test with fixed mesh size, not the fixed mesh points in FDE. In FEEM you may need to use higher polynominal orders, or finer edge length, or both. 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