The turbine blade 1, wherein {HEAD ~ the at least one inner wall protrusion} extends from {TAIL ~ the inner wall} about one half of a distance between the inner wall and the outer wall 
extends from
The turbine blade 1 , wherein { HEAD ~ the at least one inner wall protrusion } extends from { TAIL ~ the inner wall } about one half of a distance between the inner wall and the outer wall
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH