Parametric study of marine propeller performance based on numerical simulation
| Autor: | Hsin-Wei Hsu, 許忻瑋 |
|---|---|
| Rok vydání: | 2006 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 94 The main objective of present study is to develop an automatic grid generation procedure for the parametric performance analysis of the marine propellers. The simulation platform is based on the STAR-CD software to compute the flowfield of the 2695 model propeller provided by the china ship building company. There are also open water tests data available at different advance ratios to allow careful examinations of the prediction capability of the present numerical procedure. Also, CSBC provides simulation results using panel method, which can also be used as supplementary criteria of the results. A series of parametric studies are performed on the model 2695 to explore the influences of the propeller efficiency, which include skew, rake, area ratio (chord length) and the number of the propeller blades. The results indicate that the increase of skew has little effects on the performance of the propeller. However, increase of the rake and chord length do reduce the performance of the propeller, The reduction of blade number, on the other hand, increase the efficiency, however, the thrust of force is reduced due to decrease of the blade number. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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