'Turbulent Pipe Flow' simulation project by sjoshi


I created a new simulation project called 'Turbulent Pipe Flow':

This project simulates turbulent flow through a straight circular pipe.

More of my public projects can be found here.


For detailed study please go to Turbulent Pipe Flow documentation.


As shown in Turbulent pipe flow tutorial, when we use k-epsilon model wall function approach we need not add more meshing near the wall ( less cells in wall normal direction) . But if we use full mesh resolution approach we need to have fine mesh near the wall ( more cells in wall normal direction ) . Am I right ??


Hi @sbandaru and sorry for the delay.

You are right! As stated in the documentation:

  • “Full resolution” of the near-wall region: This approach explicitly models the boundary layer all the way down to the laminar sub-layer. It requires the first cell center to be placed at most at the top of the laminar sub-layer, where y+≈1. This procedure demands computational grid resolution in to be very fine.

  • Use of wall-functions to resolve the near-wall region: This approach allows for the center of the first cell next to the wall boundary to be placed in the range: 30⩽y+⩽300.