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NOZZLE FLOW OF A SHIP PROPULSION EQUIPMENTDRIVEN BY HIGH-PRESSURE GAS

机译：高压气体驱动的船舶推进装置的喷嘴流

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A two-dimensional open type nozzle has been investigated for ship propulsion equipment. In this nozzle, a high-pressure gas (air) is ejected from below into water flow and accelerates the water towards- downstream. Two cases, continuously and intermittently ejection of gas, are studied. In the latter case, the thrust itself is smaller than that in the former case, but thrust based on the ejection duration is larger. Even in the continuously ejected case, it was found that the gas phase and the water phase are separated. The water waves of large amplitude appear on the interface inside the nozzle and these waves propagate towards downstream. A numerical study by the lattice Boltzmann method was also performed to clarify the flow inside the nozzle.

机译：已经研究了用于船舶推进设备的二维开放式喷嘴。在该喷嘴中，高压气体（空气）从下方喷射到水流中，并使水向下游加速。研究了两种情况，连续和间歇地喷出气体。在后一种情况下，推力本身小于前一种情况，但是基于喷射持续时间的推力较大。即使在连续喷射的情况下，也发现气相和水相分离。大振幅的水波出现在喷嘴内部的界面上，并且这些水波向下游传播。还通过格子Boltzmann方法进行了数值研究，以澄清喷嘴内部的流动。

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来源
《Fluids Engineering Conference》|2003年|p.549-555|共7页
会议地点 Honolulu HI(US);Honolulu HI(US)
作者
Michihisa Tsutahara; Kazuhiko Ogawa; Masahiko Sakamoto; Takahiro Matsui;
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作者单位

Graduate School of Science and Technology, Kobe University, Rokko, Nada, Kobe 657-8501 JAPAN;

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原文格式 PDF
正文语种 eng
中图分类一般工业技术;
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专利

1. Development of numerical method to simulate flows around a ship at propulsion conditions in regular waves coupling with the ship propulsion plant model [J] . Ohashi Kunihide Applied Ocean Research . 2018,第期

机译：在船舶推进工厂模型中，在船舶推进条件下模拟船周围船周围的数值方法的发展
2. Performance Improvement of Ship Propulsion Equipment Driven by High-Pressure Gas (Performance Improvement by blowing Moist Air) [J] . Michihisa TSUTAHARA, Takeyoshi KIMURA, Kazuhiko OGAWA 日本機械学会論文集. B編 . 1999,第631期

机译：高压气体驱动的船舶推进设备的性能改进（通过吹入潮湿空气来提高性能）
3. Numerical investigation on effects of nozzle's geometric parameters on the flow and the cavitation characteristics within injector's nozzle for a high-pressure common-rail DI diesel engine [J] . Zuo-Yu Sun, Guo-Xiu Li, Chuan Chen, Energy Conversion & Management . 2015,第jana期

机译：高压共轨DI柴油机喷嘴几何参数对喷油嘴内流动和空化特性影响的数值研究
4. NOZZLE FLOW OF A SHIP PROPULSION EQUIPMENTDRIVEN BY HIGH-PRESSURE GAS [C] . Michihisa Tsutahara, Kazuhiko Ogawa, Masahiko Sakamoto, ASME/JSME Joint Fluids Engineering Conference . 2003

机译：船舶推进的喷嘴流量由高压气体提供
5. EXPERIMENTAL AND THEORETICAL RESULTS FOR LOW CURRENT D.C. ARC IN NOZZLE FLOWS AND CALCULATION OF COLD FLOW FIELD AND CORRELATION WITH EXPERIMENTAL DATA FOR ASYMMETRICAL FLOW CIRCUIT BREAKER NOZZLES (GAS DYNAMICS, NUMERICAL, FINITE ELEMENT METHOD). [D] . WHANG, HO-CHANG. 1986

机译：喷嘴流中低电流D.C. ARC的实验和理论结果以及冷流场的计算及其与非对称流断路器喷嘴的实验数据的相关性（气体动力学，数值，有限元方法）。
6. Numerical Study on the Gas–Solid Flow in aSpouted Bed Installed with a Controllable Nozzle and a Swirling FlowGenerator [O] . Feng Wu, Xinxin Che, Zhenyu Huang, 2020

机译：气固两相流动的数值研究喷水床安装有可控的喷嘴和旋流发电机
7. Study on Flow Phenomenon inside a Nozzle in Ship Propulsion Equipment Directly Driven by High Pressure Air (Experimental Consideration of Flow inside a Nozzle According to Water-flow Velocity) [O] . Shinsuke TAJIRI, Michihisa TSUTAHARA, Kazuhiko OGAWA, 2008

机译：高压空气直接驱动船舶推进设备中喷嘴内流动现象的研究（根据水流速下喷嘴内流动的实验考虑）
8. Propulsion Nozzle Studies. Volume I. Transonic Flow in an Elliptic Nozzle. [R] . thompson, h. doyle epstein,murray a. 1977

机译：推进喷嘴研究。第一卷椭圆形喷嘴中的跨音速流动。

NOZZLE FLOW OF A SHIP PROPULSION EQUIPMENTDRIVEN BY HIGH-PRESSURE GAS

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