¤ph"a4"ddaa*¤apm
¤Fs¤mFsnnn 1-37QQQ_¢_Q¬
"ddp"zda^""F=aF4F=p"m"VFmz^pmF=pmpOpddp§^F
"VFm4"dd4p¦F"VFz"^O"m"VFm"4a¦"FFm=dd"dda=pFmp
"OOF4^F=aa*¤apmpO4"ddmzda4"dd=aF4F=p"m"VFm
"apmOpddp§^Fzda4"dd4p¦F"VFz"^:pm4F^F"VFmpm
m§FamF¦"dahF
"ddp§"=amVdd"dd
"ddp§"=amVdd"dd"4a¦"F=Op"mam=a¦a=¤"dF¨Fmapm=pFmp
"OOF4^FF¨FmapmO¤m4apm
^Fm"4a¦"F=Op^FzdaF¨Fmapm:4"dd=aF4F=p^Fzda"F
Op§"=F=Oph^Fzda"ddF4Fa¦Fmp"mmp¤m4FhFm"p4a"F=§a^
^"zda|p^F^"m"Op4F=Oa"mmp¤m4FhFm:aO"=hamaFF=}^F
©FhFzppp^"4"dd"F¤F¤F=pm^Fzda^F
©FhFzpp§^Fm^F4"ddaFhp¦F=Oph^F¤F¤F"m=
Op§"=F=
"dd4"m*FOp§"=F=p"mpOO_zFhaF=Fam"apmp"4a¦"Fm"Odp§
"m=mFOdp§FF‘‘Intraflow and Interflow’’ on page 1-101am^a*ppcOp
hpFamOph"apm
"""ddF¤z
pa4F_Fham"dp=""_Fham"d=a"damV4"m*F¤F=pm4"ddppOph"
hFh*FpO"mzda
""Fa4apm
O^F��¤mcVp¤z¤F=Op"m4"dd^"=""Fa4apm"4a¦"F=:
"VFm§a^¤ph"a4m§F"4a¦"F==pmp^F"^F¤¤"d«azpmF

4"mmphF"¤Fzdapm"mF§pc"aO^F©§FFpmF
§a4^VFmOp"zdah¤*F"ddpm^F"hF§a4^O"4"ddp"m
zdaaOp§"=F=p"zda""mp^Fmp=F:^F4"ddF=pFmp
^F"^FOp4F=Oa"mmp¤m4FhFm"^FF4pm=zda
O"mzdaaammaV^F¦a4F:§a^"zda"F4pm=mp=F"^F
maV^F¦a4F=Fam"apm:"4"ddp^FOazdaa4pmmF4F=p^FF4pm=
zdaOaOp4F="mmp¤m4FhFm
a"dmF4ph
m"VFm§a^paVam"apm"m=Fham"apmFa4apm4"mF4Fa¦F4"dd
"m=4"mh"cF"m=F4Fa¦F=a"damF4ph4"dd
pd=
O"m"VFmz¤"m4"ddpm^pd=:amOph"apmaFzpF=p^F
¦a"Fpm"d"dd"4camVF4p=^F"hp¤mpOahF^F"VFm
"4¤"dd©"dcpm^F4"dd