{"id":358497,"date":"2024-03-22T14:16:58","date_gmt":"2024-03-22T14:16:58","guid":{"rendered":"\/forum\/forums\/topic\/precise-volume-average-for-import-surface-geometry\/"},"modified":"2024-03-22T14:16:58","modified_gmt":"2024-03-22T14:16:58","slug":"precise-volume-average-for-import-surface-geometry","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/precise-volume-average-for-import-surface-geometry\/","title":{"rendered":"Precise volume average for Import Surface geometry"},"content":{"rendered":"<p>The mesh refinement option &#8220;precise volume average&#8221; in combination with the &#8220;Import Surface&#8221; (importsurface2) geometry does not lead to the expected result. As an example, we look at the reflection of a plane wave on a sinusoidal grating of some material:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/22-03-2024-1711116701-Screenshot 2024-03-22 at 15.05.57.png\" alt=\"\" width=\"838\" height=\"598\"><\/p>\n<p>The precise volume average mesh refinement incorrectly assigns the permittivity of the material to the whole rectangular volume, leading to the following intensity profile:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/22-03-2024-1711116717-Screenshot 2024-03-22 at 14.54.45.png\" alt=\"\" width=\"845\" height=\"462\"><\/p>\n<p>Instead, only the material enclosed by the surface should have the perimittivity of the material leading to an intesity profile like:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/22-03-2024-1711116747-Screenshot 2024-03-22 at 15.12.20.png\" alt=\"\" width=\"845\" height=\"434\"><\/p>\n<p>How can I set up the simulation with the expected behavior (last figure) and the precise volume average mesh refinement option?<\/p>\n<p>Many thanks,<br \/>Erik<\/p>\n","protected":false},"template":"","class_list":["post-358497","topic","type-topic","status-closed","hentry","topic-tag-mesh","topic-tag-mesh-refinement"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The mesh refinement option &quot;precise volume average&quot; in combination with the &quot;Import Surface&quot; (importsurface2) geometry does not lead to the expected result. 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