According to Bernoullis principle, the pressure of the slow traveling air in {HEAD ~ the gap} 70 near {TAIL ~ the outlet end} 56 is higher than the pressure of the fast traveling air exiting the truncated cone 52 
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According to Bernoullis principle , the pressure of the slow traveling air in { HEAD ~ the gap } 70 near { TAIL ~ the outlet end } 56 is higher than the pressure of the fast traveling air exiting the truncated cone 52
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH