{"id":358280,"date":"2024-03-21T08:30:25","date_gmt":"2024-03-21T08:30:25","guid":{"rendered":"\/forum\/forums\/reply\/358280\/"},"modified":"2024-03-21T08:30:25","modified_gmt":"2024-03-21T08:30:25","slug":"358280","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/358280\/","title":{"rendered":"Reply To: Coupled Field Transient – Acoustic"},"content":{"rendered":"

<p>Hello,<\/p><p>Thank you for your reply. Yes, that was the post that i referred to. I have tried to replicate that simulation but i cannot reproduce the results. Can you provide some information regarding that particular model?<\/p><p>I have made a 10 m long water “duct” with 0.2×0.2 m2 cross section area using Fluid220 elements, a pressure pulse is applied on one end, a radiation boundary is applied at the other end. I am comparing the regular Water liquid material with 1.003e-09 MPa*s visc to an adjusted Water liquid with 0.001 MPa*s visc, but the acoustic pressure at the radation boundary is the same. <\/p><p>My specific case involves a much slower pulses at 10-20 Hz, at a wave speed of 300 m\/s. I want to benchmark my calculation against an analytical simulation that we have, the analytical simulation uses a specified damping ratio and i think this visc parameter could be a good parameter to work with.<\/p><p>BR<\/p><\/p>\n","protected":false},"template":"","class_list":["post-358280","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