Why does it look like mosaic?


As shown below, the volume fraction distribution (i.e. the left one )of PIC simulation doesn’t looks smooth as the mole fraction distribution of gas specie (i.e the right one) does. Is it possible for us to improve its resolution?

Thank you!

The parcels are being binned on the fluid mesh to determine the volume fraction. So what you see are the fluid cells. Not sure what your goal is:

  1. Higher fidelity simulation
  2. Better looking image

If it is Higher fidelity simulation, increase your cell count. If you want a better looking image, you can visualize the parcels instead, or use various interpolation schemes to smooth out the image.