최소길이 노즐내의 유동장에 대한 수치해석적 연구 = A Study on the Numerical Analysis of Flowfields in Minimum Length Nozzle

다국어 초록 (Multilingual Abstract)

Supersonic viscous flows in minimum length nozzle(MLN) are studied numerically, using the Navier-Stokes equation. With the help of the method of characteristics(MOC) for the fixed exit Mach number of two, the modelled supersonic wall contours for two-dimensional, axisymmetric, curved sonic line(CSL) are derived. These wall contours are combined with subsonic inlets to determine the influence of the inlet geometry on the sonic line shape and flowfields. Representative nozzle flowfields, including the boundary layer separation and oblique shock waves are shown for different inlet geometry for laminar flows. These numerical results are compared to the analytical prediction with good agreement.