Prototype program 3DLS for numerical simulation and visual presentation of sound waves propagation inside 3D volume

This work considers the features of prototype program 3DLS intended for numerical simulation and visual presentation of sound waves 3D propagation inside closed volumes. The calculations are based on 3D time-dependent linearised Eyler equations solution. Different types of boundary conditions are discussed. The results of test calculations are described. This work presents an attempt to generalise 2D approaches and methods created before to 3D case.