Study on the intake flow field of the waterjet propulsion system

• Main Authors: Ding Ching-huei, 丁清輝
• Other Authors: Hwang J. L.
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/42965283638063921563

碩士 === 國立臺灣大學 === 造船及海洋工程學研究所 === 87 === By considering the design criteria of an intake, a computer program was written to design two dimensional geometry of the intake of waterjet system by parametric cubic spline model. The output of the geometry design program provides the geometry data for plotting and the panel for potential flow calculation. A two dimensional potential flow calculation program was developed based the desigularized Cauch's formula to calculate the pressure distribution of ramp and lip of the designed two dimensional intake. The Calculated pressure distribution were similar with that measured. The pressure distribution calculated by the potential flow is a fast and accurate way that could provide the information about the calculation characteristics of ramp and lip. An optimum technique was used to find the optimum geometry parameters under the constrained situations. And the optimum value is the best designing of the two dimensional geometry of the intake