{"id":396658,"date":"2024-12-07T10:28:26","date_gmt":"2024-12-07T10:28:26","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/numerical-study-of-single-slope-solar-still-solar-still-ansys-fluent\/"},"modified":"2024-12-07T10:28:26","modified_gmt":"2024-12-07T10:28:26","slug":"numerical-study-of-single-slope-solar-still-solar-still-ansys-fluent","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/numerical-study-of-single-slope-solar-still-solar-still-ansys-fluent\/","title":{"rendered":"Numerical study of single slope solar still solar still (Ansys Fluent)"},"content":{"rendered":"

<p>Hello,<\/p><p>I am working on single slope solar still simulation. I have made geometry by design modeler. For meshing, I have used fluent with meshing. If i use unstructed and hexa mesh then i got floating point error after some iterations.<\/p><p>\"4cm\"Fluent<\/p><p>I am using following models:<\/p><\/p>\n

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  1. Multiphase VOF model: Implicit, 2-phase (Phase-1:- Air-vapor mixture and Phase-2:- Water-liquid), Lee model for evaporation and condensation.<\/li>\n
  2. Species Transport: To make mixture phase only.<\/li>\n
  3. Viscous model: Laminar<\/li>\n
  4. Radiation model (Discrete Ordinates and Solar ray tracing): Solar calculator<\/li>\n<\/ol>\n

    <p>Boundary conditions: Glass cover: Mixed (Thermal), Semi-transparent (Radiation)      Bottom plate: Adiabatic (Thermal), opeque-yes (Radiation)   Other walls and collector: Adiabatic (Thermal), Opeque-No (Radiation).<\/p><p>Solution methods: SIMPLE Scheme<\/p><p>Total time of simulation is 11 hours (50400 sec).<\/p><p>Issues:<\/p><\/p>\n

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    1. From the close domain, mass of water is getting zero while vapor is not generated during simuation.<\/li>\n<\/ol>\n

      <p>\"mass<\/p><p>\"Initially\"After<\/p><p>                                                           at t = 0 sec                                                                                                                      at t = 3215 sec<\/p><p>i have tried with 3 phase also (air, vapor and water) by keeping all parameters same, still i got same issues.<\/p><\/p>\n","protected":false},"template":"","class_list":["post-396658","topic","type-topic","status-publish","hentry","topic-tag-multiphase_models-1","topic-tag-ansys-fluent"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["396658"],"_bbp_subscription":["489485","199"],"_bbp_author_ip":["14.139.85.200"],"_bbp_last_reply_id":["397614"],"_bbp_last_active_id":["397614"],"_bbp_last_active_time":["2024-12-16 11:24:16"],"_bbp_reply_count":["18"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["489485","199"],"_btv_view_count":["213"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1733567348:489485"],"_bbp_notification_enabled":["489485"]},"test":"d31f4eba5d2d4155b7398518d2393882ed2ec757"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/396658","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\/396658\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=396658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}