{"id":390978,"date":"2024-10-23T07:31:18","date_gmt":"2024-10-23T07:31:18","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-dpm-whose-droplet-material-properties-not-available-in-database\/"},"modified":"2024-10-23T07:31:18","modified_gmt":"2024-10-23T07:31:18","slug":"simulating-dpm-whose-droplet-material-properties-not-available-in-database","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-dpm-whose-droplet-material-properties-not-available-in-database\/","title":{"rendered":"Simulating DPM whose droplet material properties not available in database"},"content":{"rendered":"<p>&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Hi there,&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;I am currently using Fluent to simulate pure ammonia droplet release (airborne liquid) in air with 2D geometry. The quantity of the droplet relative to the surrounding supplied air is very small (&lt;&lt; 10%) and since the temperature of air is much higher than that of the ammonia droplets (30 C vs -33 C), the droplets are expected to gradually vaporize (thus resultant vapor will be in the air phase).&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Intuitively, DPM (coupled with phase change through multiphase) is the way to go. However, the default Material Droplet Particle database doesn&#8217;t have the droplet properties for Liquid Ammonia (the only choice automatically assigned is Argon-Liquid). I don&#8217;t see any way to create the new Liquid Ammonia droplet, and when I tried to make one I was flagged for already having Liquid Ammonia properties (in Material &gt; Fluids). And even if I succeed, I don&#8217;t know how to couple it with the phase change (vaporization) model.&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;I wonder if anyone has encountered the same problem or solution for the problem. Thanks in advance.&lt;\/span&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390978","topic","type-topic","status-publish","hentry","topic-tag-multiphase_models-1","topic-tag-2d_dpm-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi there,I am currently using Fluent to simulate pure ammonia droplet release (airborne liquid) in air with 2D geometry. 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