{"id":319214,"date":"2023-11-23T14:09:22","date_gmt":"2023-11-23T14:09:22","guid":{"rendered":"\/forum\/forums\/reply\/319214\/"},"modified":"2023-11-23T14:09:22","modified_gmt":"2023-11-23T14:09:22","slug":"319214","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319214\/","title":{"rendered":"Reply To: How do I automatically import hundreds of structures into AQWA"},"content":{"rendered":"<p>&lt;p&gt;Hi &#8211; I don&#8217;t get how you can use ANSYS AQWA to get the added mass.&lt;\/p&gt;&lt;p&gt;One input parameter in AQWA is the added mass coefficient, that can be calculated according to norms eg.:&lt;\/p&gt;&lt;p&gt;DNV-RP-C205 Appendix D &#8211; there based on shapes, the added mass coefficient can be found analytical, (DNV norm can be found on the Internet).&lt;\/p&gt;&lt;p&gt;I&#8217;m not 100% sure but I think it&#8217;s this value that goes directly into AQWA, check AQWA help how added mass is defined in the program.&lt;\/p&gt;&lt;p&gt;Another way to find the added mass is by use of CFD, eg. ANSYS Fluent.&lt;\/p&gt;&lt;p&gt;By doing free decay test in Fluent, you can back calculate the added mass = cal. mass via formular below &#8211; total mass.&lt;\/p&gt;&lt;p&gt;Omega = sqrt(Kw \/ M) and Omega = (2xpi) \/ T, Kw = rho x g x Aw&lt;\/p&gt;&lt;p&gt;So from these three eq. the total mass including added mass can be found, and subsequently the sole added mass.&lt;\/p&gt;&lt;p&gt;Hope this can be used.&lt;\/p&gt;&lt;p&gt;KR &#8211; Niels Chr. Olsen &#8211; Norway&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-319214","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=\"Hi - I don&#039;t get how you can use ANSYS AQWA to get the added mass.One input parameter in AQWA is the added mass coefficient, that can be calculated according to norms eg.:DNV-RP-C205 Appendix D - there based on shapes, the added mass coefficient can be found analytical, (DNV norm can be found on the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319214\/\" \/>\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: How do I automatically import hundreds of structures into AQWA | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi - I don&#039;t get how you can use ANSYS AQWA to get the added mass.One input parameter in AQWA is the added mass coefficient, that can be calculated according to norms eg.:DNV-RP-C205 Appendix D - there based on shapes, the added mass coefficient can be found analytical, (DNV norm can be found on the\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319214\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-11-23T14:09:22+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-11-23T14:09:22+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: How do I automatically import hundreds of structures into AQWA | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi - I don&#039;t get how you can use ANSYS AQWA to get the added mass.One input parameter in AQWA is the added mass coefficient, that can be calculated according to norms eg.:DNV-RP-C205 Appendix D - 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I don't get how you can use ANSYS AQWA to get the added mass.One input parameter in AQWA is the added mass coefficient, that can be calculated according to norms eg.:DNV-RP-C205 Appendix D - there based on shapes, the added mass coefficient can be found analytical, (DNV norm can be found on the\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/319214\\\/#breadcrumblist\"},\"datePublished\":\"2023-11-23T14:09:22+00:00\",\"dateModified\":\"2023-11-23T14:09:22+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: How do I automatically import hundreds of structures into AQWA | Ansys Learning Forum","description":"Hi - 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