二相喷水推进系统推进性能之研究(英文)(蔡进发)

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【作者】蔡进发 【作者单位】台湾大学工程科学及海洋工程学系

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【论文摘要】 本研究设计一水上摩托车的二相喷水推进系统,压缩空气透过一装在二相喷水推进系统内面的多孔透气材喷入喷嘴中,本研究量测此水上摩拖车的喷水推进系统与二相喷水推进系统的流体动力性能,由量测结果显示二相喷水推进系统的推力会因压缩空气的喷入而增加, 推力增加的量和入流速度与喷入的空气量有关,由量测结果显示最大的推力增加约为90%的喷流动量,最佳无因次空气流量约为0.5,也就是空气流量与水的流量相同。水利论文_ ]0}RN(CZZ)i

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【英文论文摘要】 A two-phase waterjet propulsion system was designed for a jet ski.The compressed air is injected into the nozzle through the porous ring attached on the inner surface of the two-phase waterjet.The propulsion performances of the jet ski with the original nozzle and with the two-phase nozzle were measured in this study.The test results show that the thrust of the two-phase waterjet nozzle increases due to the injecting compressed air.The maximum increase of the thrust by two-phase waterjet is about 90% of the water jet momentum at that speed in this study.The optimum non-dimensional airflow rate is 0.5 which is the case that the airflow rate is about the same as the water flow powered by the waterjet.

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7?*_D A'U1b9kh0【论文关键词】 二相喷水推进系统; 推进
JRD2e.lZ|0【英文论文关键词】 Two-phase waterjet propulsion system; Propulsion水利论文s&il6d-~a*_

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TAG: 性能 研究 推进系统 英文 喷水
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