k-Wave

1. nitish_gade
   

   Member
   Joined: Oct '21
   Posts: 1

   The sensor matrix has non-NaN values when run for less than 100 timesteps, however for more than 100 timesteps (i.e. t_end/dt > 100) then the sensor matrix only has NaN values. Even with checking the dt using the builtin k-wave function (checkStability), it returns Inf, suggesting that all timesteps should be stable. Could someone help with this issue?

   Posted 2 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Nitish,

   This does sound like an instability. Is it solved by making the time step (or equivalently the CFL) smaller?

   Note, the function checkStability only gives an approximate answer in some circumstances (see documentation).

   Brad.

   Posted 2 years ago #

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