[BUG] Question about exponentially increasing pressure when adding heterogenous density

[ivanmkc]

Describe the bug In some situations, adding heterogenous density results in greatly increasing pressure.

I'm new to ultrasound and k-wave so perhaps this is user error.

To Reproduce See attached notebook.

Adding a tiny area of heterogenous density is enough to reproduce this behaviour.

Ultrasound_Simulation_2D_(k_wave_python) (1).ipynb.zip

Expected behavior I won't expect a tiny area of different density to lead to enormous increases in pressure.

Screenshots Increasing pressure over time

Desktop (please complete the following information):

Colab

Additional context Add any other context about the problem here.