 techniqu investig heat transfer surfac phenomena hyperson flow condit techniqu investig heat transfer surfac phenomena hyperson flow condit forebodi practic interest hyperson vehicl interact inviscid flow field boundari layer inviscid flow theori determin independ surfac phenomena physic interest quantiti shock shape shock detach distanc sonic shape pressur distribut pressur distribut determin studi heat transfer materi behavior surfac phenomena bodi prandtl boundari-layer concept util calcul inviscid flow boundari-layer behavior purpos note point concept appli experiment order provid conjunct convent hyperson wind-tunnel air suppli investig hyperson heat transfer surfac phenomena condit flight reynold number 