[songyangman]

Dear Foamers,


Hello, this is my first time posting here.


I am trying to create a wave generator in OpenFOAM-v2406 where a cubic object (pump) moves upwards through the water surface inside a tank. Here are the details:

• The tank and pump (cubic object) are created using blockMeshDict, not topoSetDict.
  whole.jpg
  
  
  
• I initially tried to create the object inside the tank using the topoSet command, but it was too complex, so I defined it directly in blockMeshDict.
  blockMeshDict.txt
  
  
  
• The pump(cubic on the image) starts fully submerged and extends upward.
  (This is similar to throwing a punch upwards from underwater.)
  motion.jpg
  
  
  
• I aim to simulate the upward motion of the pump using solidBodyMotion, but I'm encountering an issue: either both the tank and pump move together, or nothing moves at all.
  dynamicMeshDict.txt
  
  
  
• I am using the interFoam solver, and the pump’s interaction with the fluid dynamics is not relevant here.
  
  
  
• I only need the pump to rise quickly without considering its response to fluid forces (i.e., no need for a 6 degree of freedom setup).
  pointDisplacement.txt
  
  
• I’ve attached my blockMeshDict, dynamicMeshDict, and images from ParaView for reference.

If anyone has experience with this type of simulation or any advice on how to fix the motion problem, I would greatly appreciate the help!


Thank you, and I hope everyone has a great day!