On two-dimensional steady hypersonic-limit Euler flows passing ramps and radon measure solutions of compressible Euler equations

We proposed rigorous definitions of Radon measure solutions for boundary value problems steady compressible Euler equations which modeling hypersonic-limit inviscid flows passing two-dimensional ramps, and their interactions with still gas pressureless jets. proved the Newton-Busemann pressure law drags body in hypersonic flow, constructed various physically interesting density containing Dirac measures supported on curves, also exhibited examples blow up certain solutions. This established a mathematical foundation applications engineering further studies equations.