{"id":285181,"date":"2023-05-22T19:39:38","date_gmt":"2023-05-22T19:39:38","guid":{"rendered":"\/forum\/forums\/topic\/how-to-use-transient-solar-ray-tracing\/"},"modified":"2023-05-22T19:39:38","modified_gmt":"2023-05-22T19:39:38","slug":"how-to-use-transient-solar-ray-tracing","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-use-transient-solar-ray-tracing\/","title":{"rendered":"How to use Transient Solar Ray Tracing?"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I created a pavement model to simulate solar radiation. The Solar Ray Tracing Model was used for solar source and the Surface to Surface Model was selected as the Radiation Model. The solar-calculator was adopted to calculate solar irradiation and sun direction. The time step was set as 1 hour=3600s. However, the the temperature and solar heat flux did not show a periodic change. Also, I try to use UDF to calculate solar irradiation. Similar results were obtained that the temperature and solar heat flux did not show a periodic change. Would you please give me some suggestions? Thank you!<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/22-05-2023-1684784340-Picture4.png\" alt=\"\"><\/p>\n<p><img decoding=\"async\" title=\"Radiation model\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/22-05-2023-1684783927-Picture1.png\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" title=\"Radiation Model\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/22-05-2023-1684783947-Picture2.png\" alt=\"\" width=\"555\" height=\"479\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/22-05-2023-1684784305-Picture3.png\" alt=\"\"><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/22-05-2023-1684784354-Picture5.png\" alt=\"\"><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/22-05-2023-1684784367-Picture6.png\" alt=\"\"><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-285181","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["158365","18096"],"_bbp_author_ip":["23.217.200.71"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1315"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["285181"],"_bbp_forum_id":["27792"],"_bbp_engagement":["18096","158365"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["286927"],"_bbp_last_active_id":["286927"],"_bbp_last_active_time":["2023-06-02 20:11:12"]},"test":"henry"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/285181","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\/285181\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=285181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}