v1.5

1. Improved treatment for shock waves.

• The multivalued solutions associated with shock fronts are no longer treated by discarding the information of the overtaking emission node in the Lagrangian wave tracking, but by a new averaging procedure that yields better mass conservation.

2. Introduced support for non-spherical bubbles and gas cavities.

• All models based on the Kirkwood-Bethe hypothesis now support arbitrary (quasi) one-dimensional domains, including the bubble dynamics (Gilmore models) and acoustic emissions (KB emissions). Readily available are a planar one-dimensional domain, cylindrical symmetry and, of course, spherical symmetry. See also the new test cases that use this functionality.

3. Removed the spatial integration of the velocity (SIV) for emissions based on the Kirkwood-Bethe hypothesis.

• This method integrated the velocity with respect to the radial coordinate along the outgoing characteristic. However, since it is equivalent to the available temporal integration method (TIV), it has been discontinued in the interest of code clarity.

4. Introduced new examples.

• Planar acoustic emitter.
• Spherical acoustic emitter.
• Rayleigh collapse of a cylindrical bubble.
• Rayleigh collapse that produces a shock wave (including Navier-Stokes reference results).

5. Updates and corrections to the documentation.

6. Minor bug fixes (e.g. in results functions and for simulations using long doubles).