{"id":358635,"date":"2024-03-23T15:37:19","date_gmt":"2024-03-23T15:37:19","guid":{"rendered":"\/forum\/forums\/reply\/358635\/"},"modified":"2024-03-23T15:37:19","modified_gmt":"2024-03-23T15:37:19","slug":"358635","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/358635\/","title":{"rendered":"Reply To: vof\/mixture model"},"content":{"rendered":"<p>&lt;p&gt;A strange thing happened, my heat exchanger cold fluid (H2) inlet is at 22K, while the hot fluid inlet is at 360K. The cold fluid is H2, and I used NIST real gas, but without using tables, so there shouldn&#8217;t be any limitations on the range of property parameters. However, in the calculation, it shows that the temperature has dropped to 13.939K. I expected the cold fluid to start heating up from 22K, so how could it drop below 22K? I&#8217;m puzzled that NIST doesn&#8217;t seem to work well. Could you please provide me with a polynomial property equation for H2? Thank you.&#8221;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/23-03-2024-1711208233-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-358635","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/358635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/358635\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=358635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}