FIG 2 illustrates a particularly expedient embodiment of a flow conditioning element 110, which includes a multitude of {HEAD ~ parallel ducts} 170 defined by {TAIL ~ walls} 180 
defined by
FIG 2 illustrates a particularly expedient embodiment of a flow conditioning element 110 , which includes a multitude of { HEAD ~ parallel ducts } 170 defined by { TAIL ~ walls } 180
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH