In this thesis, the Bezier curve is used to design the shape of the Hartmann-Sprenger tube to enhance the pressure oscillation amplitude measurable at the end wall of tube. The method to solve the regurgitant mode of the Hartmann-Sprenger tube is Roe's FDS(Flux Differnce Splitting) scheme for the two-dimensional Euler Equations.
The DOT code is used for the optimization process. The present design requires about 30 runs of the home-made Euler code, each of which takes about 7 hours to obtain quasi-steady periodic flow using the Pentium Ⅲ 600㎒ PC. To save computational time, and to show how the optimization process works, the present design demonstration is based on the initial peak pressure at the tube end wall which can be obtained in about one hour using the computer code as the above. The result shows a barrel type tube configuration by which stronger oscillatory shock waves are formed at the end wall of the tube in the regurgitant flow mode.
