 analysi base pressur superson speed comparison experi analysi base pressur superson speed comparison experi investig analysi base pressur inviscid fluid two-dimension axial-symmetr flow two-dimension flow flow bodi revolut cylindr sting attach base infinit number solut satisfi boundari condit free-stream mach number case bodi sting attach solut inviscid flow correspond base drag conclud strictli inviscid-fluid theori satisfactori practic applic exact inviscid-fluid theori adequ describ condit real fluid flow approxim semi-empir theori base pressur viscou fluid develop second investig semi-empir theori base partli inviscid-flow calcul restrict airfoil bodi boat-tail theori attempt allow effect mach number reynold number profil shape type boundari-layer flow experiment measur base pressur two-dimension axial-symmetr flow present purpos comparison experiment present concern support interfer cylindr sting interfer reflect bow wave measur base pressur superson wind tunnel 