In certain example embodiments, the velocity of the air/wind may be increased within the channel by {HEAD ~ virtue} of {TAIL ~ features} that produce the Coanda effect 
In certain example embodiments , the velocity of the air / wind may be increased within the channel by { HEAD ~ virtue } of { TAIL ~ features } that produce the Coanda effect
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH