{HEAD ~ The air flow} that does not enter the truncated cone 52 is guided through the gap 70 between the bracket 58 and the outer surface of the truncated cone 52, partly guided by {TAIL ~ the Coanda effect} around the curves of the lip 62 
{ HEAD ~ The air flow } that does not enter the truncated cone 52 is guided through the gap 70 between the bracket 58 and the outer surface of the truncated cone 52 , partly guided by { TAIL ~ the Coanda effect } around the curves of the lip 62
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH