cranfield0009

transit studi skin friction measur insul flat plate mach number investig transit skin friction insul flat plate made galcit hyperson wind tunnel nomin mach number phosphoresc lacquer techniqu use transit detect found good agreement total head rake measur along plate surfac pitot boundarylay survey found boundari layer laminar reynold number least transvers contamin caus turbul boundari layer tunnel sidewal origin far downstream flat plate lead edg reynold number spread uniform angl compar degre low speed flow effect two dimension local disturb investig techniqu air inject boundari layer mean hasten transit extens use although onset transit occur reynold number low fulli develop turbul boundari layer obtain reynold number much regardless amount air inject qualit discuss result given emphasi possibl greater stabil laminar boundari layer hyperson flow lower speed direct skin friction measur made mean float element techniqu rang reynold number verifi laminar complet rang air inject turbul shear obtain reynold number greater valu good agreement earlier result investig turbul skin friction coeffici found approxim incompress flow constant valu effect reynold number