{"id":366501,"date":"2024-05-11T13:24:11","date_gmt":"2024-05-11T13:24:11","guid":{"rendered":"\/forum\/forums\/topic\/flow-through-heater\/"},"modified":"2024-05-11T13:24:11","modified_gmt":"2024-05-11T13:24:11","slug":"flow-through-heater","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/flow-through-heater\/","title":{"rendered":"Flow Through Heater"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I want to know if I am using the best setup for the analyses of my heater. This heater is a pipe where the power density is applied to the outer surface of the pipe and water runs inside of it. I have a requirement that I need to use 27kW, the temperature in the inlet 5&ordm;C and a flow rate of 20L\/min. In a way to find out the outlet temperature. Note: Inside the pipe, I got a spiral in order to achieve a higher temperature.&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715429923-mceclip2.png\" width=\"567\" height=\"144\"><\/p>\n<p>Then, I did the mesh in the Fluent and applied an inflation between the fluid and the inner surface of the pipe, where I applied the last ratio with the first layer size (for a desired Y+=1). And got a quality of (max. skewness: 0,92 ; min. orthogonal: 0,07)&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715430577-mceclip3.png\" width=\"424\" height=\"208\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715430895-mceclip4.png\" width=\"114\" height=\"251\"><\/p>\n<p>For the Setup<\/p>\n<ol>\n<li>I am using the k-omega and the SST model, are the options good or should i need to tick more boxes?&nbsp;<br \/><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715431099-mceclip6.png\"><\/li>\n<li>Then i applied the Boundary Conditions, Inlet: 5&ordm;C, Mass flow rate: 20L\/min and 27kW (35W\/cm2)<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715433632-mceclip10.png\" width=\"400\" height=\"272\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715433607-mceclip9.png\" width=\"496\" height=\"288\"><\/p>\n<p>For the solution:<\/p>\n<ol>\n<li>I am using the pressure-velocity Couple method<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715433687-mceclip12.png\"><\/p>\n<p>2. And the controls this (i dont know if i have to change anything)&nbsp;<br \/><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715433723-mceclip14.png\"><\/p>\n<p>3. I use this residual and some reports to make sure the solution converge<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715433776-mceclip15.png\"><\/p>\n<p>4. In the calculation, should I run simulation in a steady regime or a transient regime?&nbsp;<br \/><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/11-05-2024-1715433837-mceclip16.png\"><\/p>\n<p>&nbsp;<\/p>\n<p>Thanks<\/p>\n","protected":false},"template":"","class_list":["post-366501","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["344061","15476"],"_bbp_author_ip":["184.24.96.177"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["132"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["366501"],"_bbp_forum_id":["27792"],"_bbp_engagement":["15476","344061"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["367026"],"_bbp_last_active_id":["367026"],"_bbp_last_active_time":["2024-05-16 04:47:25"]},"test":"raf-oliveiraua-pt"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/366501","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\/366501\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=366501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}