碩士 / 國立中央大學 / 土木工程研究所 / 94 / In this study, a computation model for the internal hydraulic of multiport diffuser is developed. This model can simulate the flow rate and velocity distribution inside the diffuser pipe with non-uniform diameters and long risers. The results of sensitivity analysis show that pumping head increases as the number of risers, port diameter and diffuser diameter decrease. In addition, diffuser with non-uniform diameter has better performance (lower pumping head) than the uniform diameter diffuser. Furthermore, this computation model is integrated with the genetic algorithm, to find out the optimal combination of discharge parameters, such as diffuser length, diameters of diffuser and port, and number of risers. Results of several different fitness functions are compared to determine its influence and the optimal fitness function.
| Identifer | oai:union.ndltd.org:TW/094NCU05015020 |
| Date | January 2006 |
| Creators | Yi-Ming Weng, 翁一銘 |
| Contributors | Chia R. Chu, 朱佳仁 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 133 |
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