{"id":353229,"date":"2024-02-22T17:51:26","date_gmt":"2024-02-22T17:51:26","guid":{"rendered":"\/forum\/forums\/topic\/axisymmetric-model\/"},"modified":"2024-02-22T17:51:26","modified_gmt":"2024-02-22T17:51:26","slug":"axisymmetric-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/axisymmetric-model\/","title":{"rendered":"Axisymmetric Model"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I&#8217;m trying to make a model of an intervertebral disc using an axisymmetric model. The model is composed of 12 layers and the initial 11 layers are solid and I have been trying to use the hydrostatic fluid extension to make the last layer a fluid.<\/p>\n<p>A few issues I am having are:<\/p>\n<ul>\n<li>The mesh works by using a symmetry &#8211; however when solved for a force, the centre layer (fluid) sinks in on itself. Additionally, the model splits at the boundaries of symmetry and when a moment is applied the boundaires overlap.<\/li>\n<li>Is the hydrostatic fluid element the best method for making the central layer an incompressible fluid?<\/li>\n<li>Trying to use a cyclic region as part of the symmetry however a static structural system seems to not agree with it.<\/li>\n<\/ul>\n<p>Posted a few pictures below. Any help would be greatly appreciated.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/22-02-2024-1708624245-mceclip1.png\"><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/22-02-2024-1708624272-mceclip2.png\"><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/22-02-2024-1708624221-mceclip0.png\" width=\"758\" height=\"395\"><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-353229","topic","type-topic","status-closed","hentry"],"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;m trying to make a model of an intervertebral disc using an axisymmetric model. The model is composed of 12 layers and the initial 11 layers are solid and I have been trying to use the hydrostatic fluid extension to make the last layer a fluid.A few issues I am having are:The mesh works by\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/axisymmetric-model\/\" \/>\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=\"Axisymmetric Model | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi,I&#039;m trying to make a model of an intervertebral disc using an axisymmetric model. The model is composed of 12 layers and the initial 11 layers are solid and I have been trying to use the hydrostatic fluid extension to make the last layer a fluid.A few issues I am having are:The mesh works by\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/axisymmetric-model\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/22-02-2024-1708624245-mceclip1.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/22-02-2024-1708624245-mceclip1.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-02-22T17:51:26+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-02-22T17:51:26+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Axisymmetric Model | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi,I&#039;m trying to make a model of an intervertebral disc using an axisymmetric model. The model is composed of 12 layers and the initial 11 layers are solid and I have been trying to use the hydrostatic fluid extension to make the last layer a fluid.A few issues I am having are:The mesh works by\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/22-02-2024-1708624245-mceclip1.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/axisymmetric-model\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/axisymmetric-model\\\/#listItem\",\"name\":\"Axisymmetric Model\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/axisymmetric-model\\\/#listItem\",\"position\":3,\"name\":\"Axisymmetric Model\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/axisymmetric-model\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/axisymmetric-model\\\/\",\"name\":\"Axisymmetric Model | Ansys Learning Forum\",\"description\":\"Hi,I'm trying to make a model of an intervertebral disc using an axisymmetric model. 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