Because turbulence increases the rate of convection, the turbulent action created by the protrusions in the first row increases the rate of {TAIL ~ convection} of {HEAD ~ the cooling system} 
Because turbulence increases the rate of convection , the turbulent action created by the protrusions in the first row increases the rate of { TAIL ~ convection } of { HEAD ~ the cooling system }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD