{"id":392780,"date":"2024-11-05T13:57:58","date_gmt":"2024-11-05T13:57:58","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392780\/"},"modified":"2024-11-05T13:57:58","modified_gmt":"2024-11-05T13:57:58","slug":"392780","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392780\/","title":{"rendered":"Reply To: Heat transfer at inlets"},"content":{"rendered":"<p>&lt;p&gt;Hi, surface integrals are not guranteed to reproduce the values in a flux report. See the section in the user manual on reporting fluxes which says &#8220;Note that the fluxes are reported exactly as computed by the solver. Therefore, they are inherently more accurate than those computed with the&nbsp;&lt;span class=&#8221;guilabel&#8221;&gt;<strong>Flow Rate<\/strong>&lt;\/span&gt;&nbsp;option in the&nbsp;<a title=\"51.20.4. Surface Integrals Dialog Box\" href=\"https:\/\/ansyshelp.ansys.com\/Views\/Secured\/corp\/v242\/en\/flu_ug\/flu_ug_reports_task_page.html#flu_ug_Surface_Integrals\" target=\"_self\" rel=\"noopener\">Surface Integrals Dialog Box<\/a>&nbsp;(described in&nbsp;<a title=\"41.7. Surface Integration\" href=\"https:\/\/ansyshelp.ansys.com\/Views\/Secured\/corp\/v242\/en\/flu_ug\/flu_ug_SurfaceIntegration.html\" target=\"_self\" rel=\"noopener\">Surface Integration<\/a>).&#8221; If you plot the solution for temperature and\/or species mass fraction you can see if there are any significant gradients near the inlet or outlet. If there is no significant gradient then the flux report should be similar to the convective flux.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-392780","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, surface integrals are not guranteed to reproduce the values in a flux report. See the section in the user manual on reporting fluxes which says &quot;Note that the fluxes are reported exactly as computed by the solver. 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