 investig laminar boundari layer compress fluid crocco method investig laminar boundari layer compress fluid crocco method investig flow air thin laminar boundari layer flat plate crocco method solv simultan differenti equat momentum energi involv flow crocco method accur arbitrari prandtl number uniti prandtl number 0 75 specif heat held constant sutherland law viscos-temperatur variat assum repres viscos data start initi ambient temperatur -67 6 main present skin-friction heat-transfer coeffici function reynold number mach number wall-to-free-stream temperatur ratio variat shear veloc temperatur mach number boundari layer includ crocco method discuss detail 