k-Wave

1. jarvis
   

   Member
   Joined: Jul '15
   Posts: 1

   hi,

   I'm doing some research on photoacoustic, and I need to set a boundary in my project. I want to know whether change medium properties like sound speed or density is the only way to simulate this kind of problem.There is one problem when I use this method, when I set a very low sound speed like (100m/s) the program has to run about five minutes to give out the result and I only need the first 10 seconds data. So, if there is any way to cease the simulation before it end or set simulate time?

   Thanks for developing such a useful toolbox! XD

   Kaiming

   Posted 9 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Kaiming,

   The number of time steps and their spacing is set by kgrid.t_array, which is set to 'auto' by default. In this case, k-Wave tries to choose something sensible based on your inputs. However, it is straight forward to set your own values - see section 3.2 in the k-Wave manual for more details.

   For perfectly reflecting boundaries (sound soft or sound hard), there are a few ways you might enforce a boundary as discussed in this post.

   Brad.

   Posted 9 years ago #

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