超音速燃焼器の開発を支えるシミュレーション技術

抄録

This paper describes introduction on fundamentals of supersonic simulation for combustion technology for super/hyper sonic propulsion system. First, fundamental equations of compressible flow are shown with explanation of terms in the equations and numerical treatment for simulations. Second, boundary treatments are described based on the characteristic velocities of compressible flow. For compressible flow, all the information propagates at characteristic velocities as local velocity, and local velocity plus and minus sound speed. Treatments of inflow and outflow of compressible flow are explained with some typical conditions. Finally, two kinds of simulation results are shown, supersonic crossflow with air and fuel injection and rotating detonation engines.