Simulation of nozzle flow based on Euler equations

The nozzle is a widely used device in daily life, such as water fountains to rocket engines. It important find out the influence of position throat for application or design nozzle. To that end, finite difference method was employed solve 1D Euler equations obtain flow inside implement method, an in-house python code developed. relationship among velocity, pressure and density convergent-divergent found. observed that: velocity rose quickly along with reached top before rapid decrease; remained constant initially, which eventually began drop; dropped steadily had turning point. Moreover, investigated thoroughly. influences velocities at exit. faster reaches throat, higher Mach number exit boundary.