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