 method calcul compress laminar boundari layer characterist axial pressur gradient heat transfer method calcul compress laminar boundari layer characterist axial pressur gradient heat transfer karman-pohlhausen method extend sixth-degre veloc profil determin characterist compress laminar boundari layer adiabat wall presenc axial pressur gradient assum prandtl number uniti coeffici viscos vari linearli temperatur gener approxim solut permit rapid determin boundari-layer characterist free-stream mach number veloc distribut outer edg boundari layer numer exampl indic solut practic lead satisfactori accuraci includ critic reynold number stabil special purpos calcul locat separ point advers pressur gradient short simpl method base seventh-degre veloc profil deriv numer exampl indic method practic lead accur special case flow forward stagnat point karman-pohlhausen method usual fourth-degre profil lead adequ accuraci critic reynold number 