k-Wave

1. Sumo
   

   Member
   Joined: Feb '19
   Posts: 5

   Hi, Does this tool-box incorporates the viscous effects of fluids in acoustic propagation? If yes, then where to enter the viscosity of the fluid medium? I didn't find anything about the viscosity of the medium in the manual.

   Posted 5 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Sumo,

   Acoustic absorption in k-Wave is modelled using a fractional Laplacian operator that gives rise to absorption following a frequency power law. If you want to model viscous absorption, just set medium.alpha_power = 2, and define medium.alpha_coeff to give you the desired absorption coefficient in units of dB/MHz^2/cm.

   Brad.

   Posted 5 years ago #

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