{"id":436353,"date":"2025-07-09T06:51:01","date_gmt":"2025-07-09T06:51:01","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/aqwa-jonswap-spectrum-hydrodynamic-time-response\/"},"modified":"2025-07-09T06:51:01","modified_gmt":"2025-07-09T06:51:01","slug":"aqwa-jonswap-spectrum-hydrodynamic-time-response","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/aqwa-jonswap-spectrum-hydrodynamic-time-response\/","title":{"rendered":"AQWA-Jonswap Spectrum-Hydrodynamic time response?"},"content":{"rendered":"<p>&lt;p data-start=&#8221;168&#8243; data-end=&#8221;188&#8243;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Hello,&lt;\/span&gt;&lt;\/p&gt;&lt;p data-start=&#8221;190&#8243; data-end=&#8221;388&#8243;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;I&rsquo;m working with ANSYS AQWA for time-domain response analysis. I have defined a JONSWAP spectrum to generate irregular waves and have obtained the wave elevation time series as output.&lt;\/span&gt;&lt;\/p&gt;&lt;p data-start=&#8221;390&#8243; data-end=&#8221;523&#8243;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;I would like to check how well the simulated wave elevation matches the theoretical JONSWAP spectrum (for the same parameters).&lt;\/span&gt;&lt;\/p&gt;&lt;p data-start=&#8221;525&#8243; data-end=&#8221;811&#8243;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Does AQWA provide any built-in way to view or export the frequency-domain spectrum (Power Spectral Density) of the output elevation time series? If not, what is the recommended practice for verifying the agreement between the input spectrum and the generated wave time series?&lt;\/span&gt;&lt;\/p&gt;&lt;p data-start=&#8221;813&#8243; data-end=&#8221;892&#8243;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Any suggestions or workflows for this verification would be much appreciated.&lt;\/span&gt;&lt;\/p&gt;&lt;p data-start=&#8221;894&#8243; data-end=&#8221;904&#8243;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Thank you!&lt;\/span&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-436353","topic","type-topic","status-publish","hentry","topic-tag-ansys-aqwa","topic-tag-aqwa","topic-tag-hydrodynamic-response"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["436353"],"_bbp_subscription":["150512","180344"],"_bbp_author_ip":["103.21.126.81"],"_bbp_last_reply_id":["437191"],"_bbp_last_active_id":["437191"],"_bbp_last_active_time":["2025-07-18 09:01:51"],"_bbp_reply_count":["26"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["150512","180344"],"_btv_view_count":["616"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["1"]},"test":"c394bd69a3d04c280f66663ea12cfd2e9a08f8f7"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/436353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/436353\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=436353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}