{"id":255854,"date":"2020-03-24T15:05:53","date_gmt":"2020-03-24T15:05:53","guid":{"rendered":"\/forum\/forums\/topic\/discovery-live-mesh-size-2020r1-vs-2019r3\/"},"modified":"2022-08-24T08:52:08","modified_gmt":"2022-08-24T08:52:08","slug":"discovery-live-mesh-size-2020r1-vs-2019r3","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/discovery-live-mesh-size-2020r1-vs-2019r3\/","title":{"rendered":"Discovery Live mesh size: 2020R1 vs. 2019R3"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-241160\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/discovery\/2020\/03\/547.png\" alt=\"\" width=\"1000\" height=\"1093\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Hi,<\/p>\n<p>I&#8217;ve detected a strange behavior of the newest version of Discovery Live (2020R1). The latest release utilizes what&#8217;s called Smart Memory Usage; however, the minimum feature size is significantly smaller compared to the previous version (2019R3).<\/p>\n<p>I&#8217;ve tested a 1x1x1 m cube with the highest Fidelity setting on a GTX 1080Ti with 11 GB VRAM, the results are the following (see the attached image for more):<\/p>\n<style>\ntable, th, td {\n  border:1px solid black;\n}\n<\/style>\n<table style=\"width:40%\">\n<tr>\n    <strong><\/p>\n<th> Version<\/th>\n<th> Min. feature size<\/th>\n<th> Cell count<\/th>\n<p><\/strong><br \/>\n  <\/tr>\n<tr>\n<td>2019 R3<\/td>\n<td>4.7 mm<\/td>\n<td>9 631 777<\/td>\n<\/tr>\n<tr>\n<td>2020 R1<\/td>\n<td>7 mm<\/td>\n<td>2 915 452<\/td>\n<\/tr>\n<\/table>\n<p>Based on this experiment, either the spatial resolution is decreased substantially, or the mesh size\u00a0is calculated erroneously by the software. The issue is present for different geometries and GPUs as well.<\/p>\n<p>I kindly ask you to look into this problem! Also, please confirm or deny whether\u00a0the minimum feature size is equal to the mesh size or not.<\/p>\n<p>If possible, please share some details with us about how Smart Memory Usage works as well. (How the cells are divided\u00a0around the thin objects, what&#8217;s the condition of being thin, how far from the wall the refinement is present, etc.)<\/p>\n<p>Thanks,<\/p>\n<p>B\u00e1lint<\/p>\n","protected":false},"template":"","class_list":["post-255854","topic","type-topic","status-closed","hentry","topic-tag-discovery-live-2","topic-tag-mesh"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, I&#039;ve detected a strange behavior of the newest version of Discovery Live (2020R1). The latest release utilizes what&#039;s called Smart Memory Usage; however, the minimum feature size is significantly smaller compared to the previous version (2019R3). 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