{"id":370501,"date":"2024-07-04T14:07:29","date_gmt":"2024-07-04T14:07:29","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issue-calculating-the-reynolds-no-in-fluent\/"},"modified":"2024-07-04T14:07:29","modified_gmt":"2024-07-04T14:07:29","slug":"issue-calculating-the-reynolds-no-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issue-calculating-the-reynolds-no-in-fluent\/","title":{"rendered":"Issue calculating the Reynolds no. in Fluent"},"content":{"rendered":"<p>Hi! I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.<br \/>If I compute it at the end of the simulation, I get 200<strong>%<\/strong> instead of 20&#8217;000. The fact it displays the result as a percentage is weird in its own right, since I did not specify that in the expression.<\/p>\n<p>I then tried to individually compute the density and molecular viscosity and everything is alright (I get <em>10^-2<\/em> and <em>10^-8<\/em> values, respectively).<br \/>But if I try to compute the ratio, this is what happens:<br \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/04-07-2024-1720102041-glitch Fluent.jpg\" alt=\"\"><\/p>\n<p>I get 1 with unit of measure [kg\/n*m*s] and I have no idea what that&nbsp;<em>n<\/em>&nbsp;stands for.<br \/>It almost seems to me that is confuses the memory location for the real number values of viscosity and density, but again, there&#8217;s that <em>n<\/em> among the units of measure to keep in consideration. I will again stress that when including velocity and diameter in the complete Reynolds formula, with their right units of measure, I get a wrong, percentage value.<\/p>\n<p>There might be some major mistake\/oversight on my part, but still, anyone has an idea of what&#8217;s going on?<\/p>\n<p>P.S. I also tried remaking all those variables from scratch, with different names, in case that could fix possible memory allocation issues, but nothing changed.<\/p>\n","protected":false},"template":"","class_list":["post-370501","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi! I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.If I compute it at the end of the simulation, I get 200% instead of 20&#039;000. 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I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.If I compute it at the end of the simulation, I get 200% instead of 20&#039;000. 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I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.If I compute it at the end of the simulation, I get 200% instead of 20'000. 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I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.If I compute it at the end of the simulation, I get 200% instead of 20'000. 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I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.If I compute it at the end of the simulation, I get 200% instead of 20'000. The fact it displays the result as a percentage is weird in its own right, since I did not specify that in","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issue-calculating-the-reynolds-no-in-fluent\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/04-07-2024-1720102041-glitch%20Fluent.jpg","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/04-07-2024-1720102041-glitch%20Fluent.jpg","article:published_time":"2024-07-04T14:07:29+00:00","article:modified_time":"2024-07-04T14:07:29+00:00","twitter:card":"summary_large_image","twitter:title":"Issue calculating the Reynolds no. in Fluent | Ansys Learning Forum","twitter:description":"Hi! I noticed something strange in my Reynolds output parameter, with the order of magnitude being way off.If I compute it at the end of the simulation, I get 200% instead of 20'000. 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