{"id":160173,"date":"2022-09-26T10:00:48","date_gmt":"2022-09-26T10:00:48","guid":{"rendered":"\/knowledge\/forums\/topic\/discovery-aim-tutorial-flow-through-an-aortic-aneurysm\/"},"modified":"2023-08-16T06:33:38","modified_gmt":"2023-08-16T06:33:38","slug":"discovery-aim-tutorial-flow-through-an-aortic-aneurysm","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-tutorial-flow-through-an-aortic-aneurysm\/","title":{"rendered":"Discovery AIM tutorial &#8211; Flow Through an Aortic Aneurysm"},"content":{"rendered":"<p><strong>This example is taken from\u00a0<u><a href=\"https:\/\/confluence.cornell.edu\/display\/SIMULATION\/ANSYS+AIM+-+Flow+Through+an+Aortic+Aneurysm\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Cornell University&#8217;s ANSYS AIM Learning Modules<\/a><\/u><\/strong><\/p>\n<hr \/>\n<nav class=\"toc -selected\">Contents<\/p>\n<ol class=\"toc__section -lev0\">\n<li class=\"toc__item -lev0\">Problem Specification<\/li>\n<li class=\"toc__item -lev0\">Geometry<\/li>\n<li class=\"toc__item -lev0\">Mesh<\/li>\n<li class=\"toc__item -lev0\">Physics Setup<\/li>\n<li class=\"toc__item -lev0\">Results Evaluation<\/li>\n<li class=\"toc__item -lev0\">Validation<\/li>\n<\/ol>\n<\/nav>\n<h4 content_id=\"problem-specification\" class=\"toc__permalink\" content_id=\"problem-specification\" class=\"toc__permalink\"  id=\"PROBLEM-SPECIFICATION\">Problem Specification<\/h4>\n<p>In this tutorial, flow through an aortic aneurysm will be modeled using Discovery AIM. An aortic aneurysm is an inflated section of the body\u2019s main artery, called the aorta, which can lead to bursting of the artery and ultimately death.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-157358\" src=\"\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/08\/hg214.png\" alt=\" width=\" height=\"526\" \/><\/p>\n<p>Arteries carry oxygen-rich blood to various parts of the body at speeds of about 1.5 meters per second. Blood has an average density of 1060 [kg\/m^3] and a viscosity of 1.5e-3 [Pa s].<\/p>\n<hr \/>\n<h4 content_id=\"geometry\" class=\"toc__permalink\" content_id=\"geometry\" class=\"toc__permalink\"  id=\"GEOMETRY\">Geometry<\/h4>\n<p><a style=\"color: #1e6ddc; font-weight: bold; text-decoration: none;\" href=\"https:\/\/ansys13.ansys.com\/KnowledgeArticles\/Discovery\/AorticSV.zip\" download=\"\">Download the file here<\/a><\/p>\n<p>In this video, you will learn how to import the CAD model.<\/p>\n<p><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/play.vidyard.com\/acGwXBLQEbZA9TUZpYegaT.html?v=3.1.1&amp;\" width=\"700\" height=\"400\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<hr \/>\n<h4 content_id=\"mesh\" class=\"toc__permalink\" content_id=\"mesh\" class=\"toc__permalink\"  id=\"MESH\">Mesh<\/h4>\n<p>In this tutorial, we will be using\u00a0<strong>Physics-Aware Meshing<\/strong>. Physics-aware meshing helps automate and simplify your problem setup.\u00a0With physics-aware meshing, the computational mesh is generated automatically based on the solution fidelity setting and\u00a0the physics inputs.<\/p>\n<hr \/>\n<h4 content_id=\"physics-setup\" class=\"toc__permalink\" content_id=\"physics-setup\" class=\"toc__permalink\"  id=\"PHYSICS-SETUP\">Physics Setup<\/h4>\n<p>In this video, you will learn how to define a new material for blood, and how to define fluid flow conditions.<\/p>\n<p><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/play.vidyard.com\/ZffYFiCz6Nxk3JDyiVFxK5.html?v=3.1.1&amp;\" width=\"700\" height=\"400\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<hr \/>\n<h4 content_id=\"results-evaluation\" class=\"toc__permalink\" content_id=\"results-evaluation\" class=\"toc__permalink\"  id=\"RESULTS-EVALUATION\">Results Evaluation<\/h4>\n<p>In this video, you will evaluate velocity vectors in the Aortic Aneurysm and pressure on the walls.<\/p>\n<p><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/play.vidyard.com\/1J7xSqrS15SfqHrkqrFUxA.html?v=3.1.1&amp;\" width=\"700\" height=\"400\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<hr \/>\n<h4 content_id=\"validation\" class=\"toc__permalink\" content_id=\"validation\" class=\"toc__permalink\"  id=\"VALIDATION\">Validation<\/h4>\n<p>In order to verify that the simulation is accurate, it must be compared to a study that is similar in nature. This tutorial will have its results compared with the results from a study done by the Team for Advanced Flow Simulation and Modeling (TAFSM). In a study called \u201cPatient-Specific Computer Modeling of Arterial Dynamics and Blood Flow,\u201d the TAFSM collaborated with researchers at Texas Medical Center to identify arterial data in different categories and demonstrate the effectiveness of computer modeling in those categories. One of these categories is the Abdominal Aortic Aneurysm, in which the aneurysm was created digitally and subjected to flow in order to predict the flow using two different computational methods. Both methods resulted the same plot, shown below, which can be compared to the AIM solutions due to the similarity in geometry.<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-157359\" src=\"\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/08\/hg215.png\" alt=\" width=\" height=\"295\" \/><\/p>\n<p>Below is the plot output by Discovery AIM for the same situation. \u00a0As a qualitative comparison, it can been seen that the two plots are similar. There is an area of recirculation in the aneurysm, which is the key feature of aortic aneurysms. Further validation with experimental or other numerical results would be needed to assure the accuracy of the simulation.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-160416\" src=\"\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-300x190.png\" alt=\"\" width=\"300\" height=\"190\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-300x190.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-1024x648.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-768x486.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-50x32.png 50w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-100x63.png 100w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-24x15.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-36x23.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216-48x30.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/09\/hg216.png 1203w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>Reference<\/strong><\/p>\n<p>Tezduyar, Tayfun E. &#8220;Patient-Specific Computer Modeling of Arterial Dynamics\u00a0and Blood Flow.&#8221;\u00a0Team for Advanced Flow Simulation and Modeling. Rice University, n.d. Web. 16 June 2017.<\/p>\n","protected":false},"template":"","class_list":["post-160173","topic","type-topic","status-publish","hentry","topic-tag-aim-tutorial","topic-tag-discovery-aim","topic-tag-fluids"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["09-13-2022  20:20:21"],"_bbp_forum_id":["159552"],"_btv_view_count":["1779"],"_edit_lock":["1665575479:77457"],"_edit_last":["77457"],"_bbp_topic_id":["160173"],"_yoast_wpseo_content_score":["60"],"_yoast_wpseo_estimated-reading-time-minutes":["3"],"_yoast_wpseo_wordproof_timestamp":[""],"family":[""],"application_name":[""],"product_version":[""],"_bbp_likes_count":["1"]},"test":"solution"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/160173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/160173\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=160173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}