Hello Sir,nnI tried in ansys 2019 R2 still it is showing question mark.nnIf it's not possible in 2020 then how can we perform transient acoustic analysis.nnAnsys has model acoustic, static acoustic and harmonic acoustic but it doesn't provide transient acoustic.nnCould you please help me to figure it out how can I perform transient acoustic?.I am using Ansys student version 2020 in my PC and Ansys 2019 R2 in institute which has licenced version.nnThank you so muchnnRegards,nDhruvi