 inviscid hyperson flow blunt-nose slender bodi inviscid hyperson flow blunt-nose slender bodi hyperson speed drag area blunt nose larger drag area slender afterbodi energi contain flow field plane angl flight direct constant downstream distanc time greater characterist nose dimens transvers flow field exhibit similar properti directli analog flow similar intens blast wave taylor lin sakurai comparison experi hammitt va bogdonoff flat plate blunt lead edg helium shock-wave shape predict accur similar analysi predict surfac pressur distribut satisfactori experiment hemispher-cylind galcit air tunnel indic shock-wave shape surfac pressur bodi close similar theori hemispher-cylind junction energi consider combin detail studi equat motion flow similar class bodi form provid two-dimension bodi bodi revolut shock shape bodi shape entir flow field distanc nose depend extent detail nose geometri util energi drag consider find hyperson speed inviscid surfac pressur gener blunt lead edg larger pressur induc boundari-layer growth insul flat surfac insul blunt-nose slender bodi revolut correspond distanc free-stream reynold number base lead-edg thick nose diamet free flight constant replac 1 700 20 viscou interact effect forward portion blunt- nose slender bodi low valu downstream nose inviscid over-pressur small viscou interact phenomena account 