k-Wave

1. babakkh
   

   Member
   Joined: Feb '17
   Posts: 10

   Hi,

   I am using k-wave for underwater acoustic simulation and my source is the acoustic pressure recorded from seismic-airgun. my source is 5 meters below the water surface. It seems I must use source.p-mode='dirichlet' since I know the values of the source term. But in this case the reflected acoustic pressure from water/air interface is very weak which is not correct.

   If I use source.p-mode='additive', then the reflected wave seems correct but this time the source is very different than the reality.

   Can you please help me to solve this problem? k-wave can't handle source and propagation from interfaces?

   Best regards,

   Babak

   Posted 6 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,640

   Hi Babak,

   The strength of the reflection (relative to the strength of the source) shouldn't depend on what type of source you use, so that seems a little puzzling to me. Is your source mask defined at a single point?

   Brad.

   Posted 6 years ago #

3. babakkh
   

   Member
   Joined: Feb '17
   Posts: 10

   Hi,

   I think I could solve the problem, I used time integration of the source and the 'additive' mode.

   Best regards,

   Babak

   Posted 6 years ago #

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