meshing inflation problem

- June 13, 2020 at 4:53 pm
  
  Med91
  Subscriber
  
  Hello,
  
  I am new in ANSYS, i am using Workbench meshing and i have a problem when generating the inflation near the wall, (at the external section), when doing this i can not anymore using the face mesh to have more structured mesh in the fluid domain ( which is the domain betwenn the external section and the square)? i tried to add edge sizing on each side of the square to get better meshing but without success
  
  any suggestions to have more structured mesh in the fluid domain ?
- June 13, 2020 at 5:36 pm
  
  peteroznewman
  Subscriber
  
  Create 3 planes at 0, 45, 90 degree angles around the center. Use those 3 planes to slice the domain into 8 pieces. Each piece is now a 4 sided face and can take a mapped mesh.
- June 13, 2020 at 6:34 pm
  
  Med91
  Subscriber
  
  Thank you for help, however after i devided the fluid domain to 8 pieces, and used face mesh for each face, once i want to add an inflation , it shows me : No, invalid Method, i still can not add inflation once i have added face meshing
- June 13, 2020 at 7:51 pm
  
  Med91
  Subscriber
  
  do you have any suggestions to apply inflation while having face meshing ?
- June 13, 2020 at 11:47 pm
  
  peteroznewman
  Subscriber
  
  After slicing, right click and Show Sweepable bodies. Do all the bodies show in green? If so you can apply a Method on each body of Sweep. Delete the Face Meshing mesh control. Apply a Sweep method on one of the bodies. In the details window of the Sweep mesh control, set it to select a Source face and pick this front face. Once the sweep method is defined, right click on that and Inflate this method, the Source face will light up. Now you can select the boundary edge(s) for inflation.
- June 14, 2020 at 9:43 am
  
  Med91
  Subscriber
  
  After slicing , when i click show, i have only mappables bodies( no sweepables bodies) , as shown , the problem is that if i delete the face mesh, i will not have a strucural mesh in my 8 fluids domains anymore
- June 14, 2020 at 5:11 pm
  
  peteroznewman
  Subscriber
  
  Sweepable is for 3D, mappable is for 2D. I don't know what you have.
  
  So if you have a mapped mesh, apply a Sizing mesh control on the two sliced edges and set the opposite edges to have the same number of elements, but add a bias to bunch the nodes up to the wall where you need thin elements. This will give you an inflation effect without using the inflation mesh control.