{"id":398306,"date":"2024-12-23T13:34:50","date_gmt":"2024-12-23T13:34:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/398306\/"},"modified":"2024-12-23T13:34:50","modified_gmt":"2024-12-23T13:34:50","slug":"398306","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/398306\/","title":{"rendered":"Reply To: udf compiles the air equation of state"},"content":{"rendered":"

<p>Thank you for your response. The impact of a high-speed droplet on a solid surface produces a transient region of high pressure at the point of impact, with subsequent propagation of shock waves. These shock waves propagate inside the droplet and are reflected at the distal end of the droplet, forming a series of sparse waves. The reflected sparse waves are focused inside the droplet, thus creating a localized negative pressure at the distal end of the droplet. This negative pressure is due to the fact that the liquid is stretched by the reflected waves, resulting in a region of negative pressure where the tension in the liquid exceeds its intrinsic pressure. The negative pressure here is the absolute pressure. Should I use a the VOF model in fluent and set both air and liquid water as compressible liquids and then calculate?<\/p><\/p>\n","protected":false},"template":"","class_list":["post-398306","reply","type-reply","status-publish","hentry"],"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