{"id":362054,"date":"2024-04-13T08:09:56","date_gmt":"2024-04-13T08:09:56","guid":{"rendered":"\/forum\/forums\/topic\/calculating-liquid-phase-property-with-udrgmuser-defined-real-gas-model\/"},"modified":"2024-04-13T08:09:56","modified_gmt":"2024-04-13T08:09:56","slug":"calculating-liquid-phase-property-with-udrgmuser-defined-real-gas-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-liquid-phase-property-with-udrgmuser-defined-real-gas-model\/","title":{"rendered":"Calculating liquid phase property with UDRGM(User-Defined Real Gas Model)?"},"content":{"rendered":"

Dear all.<\/p>\n

I’m currently making UDRGM to input property of fluid from liquid to vapor phase.<\/p>\n

My UDRGM code structure is based on the Fluent manual (Ansys Fluent Customization Manual)<\/p>\n

When I use my code deal with vapor phase, it works well.<\/p>\n

But, when I input liquid phase condition, calculation results always went to divergence.<\/p>\n

To solve this problem, I checked my code, algorithm, and searched various forum and site.<\/p>\n

However, there were no problems in my code. And all forum that treat UDRGM subject were focuse on the vapor phsase and there were not enough information.<\/p>\n

So, to solve this problem, I want to know more information about UDRGM code.<\/p>\n

    \n
  1. UDRGM code is only avaliable for calculating vapor-phase property? – is also can not calculate supercritical phase property?<\/li>\n
  2. In UDRGM code, there are various functions such as enthalpy, partial derivative densiy…., are these functions also affecting calculating liquid or vapor phase property?<\/li>\n
  3. In UDRGM, there were ‘cxboolean vapor_phase’ variable in each function. Is affect liquid property calculation?<\/li>\n<\/ol>\n

    Plus, if someone who make UDRGM that can apply all the phase, I want to know your code development story or charactertic of your code.<\/p>\n

    I’m really appreciate for all who read this post.<\/p>\n

    Thank you.<\/p>\n","protected":false},"template":"","class_list":["post-362054","topic","type-topic","status-closed","hentry","topic-tag-fluent","topic-tag-gas-liquid-flow","topic-tag-udf","topic-tag-udrgm"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t