检索结果-南通市图书馆

A NOVEL DESIGN OF COMPOSITE WATER TURBINE USING CFD

Journal of Hydrodynamics 2012年第1期24卷 11-16页

作者： piechna janusz MLLER Norbert Turbomachinery Laboratory Department of Mechanical EngineeringMichigan State UniversityEast LansingUSA

This paper presents computational investigation of a novel design of composite material axial water turbine using Computational Fluid Dynamics（CFD）.Based on three-dimensional numerical flow analysis,the flow characteristics through the water turbine with nozzle,wheel and diffuser are *** extract power and torque of a composite water turbine at different rotating speeds were calculated and analyzed for a specific flow *** simulation results show that using nozzle and diffuser can increase the pressure drop across the turbine and extract more power from available water *** results provide a fundamental understanding of the composite water turbine,and this design and analysis method is used in the design process.

关键词： water turbine composite material Computational Fluid Dynamics(CFD) extracted power

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Numerical investigation of the power generation of a ducted composite material marine current turbine

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第1期14卷 25-30页

作者： Ji-feng WANG janusz piechna Norbert MuLER Turbomachinery Laboratory Mechanical EngineeringMichigan State UniversityEast LansingMI 48822USA Institute of Aeronautics and Applied Mechanics Warsaw University of TechnologyWarsawPoland

In the hostile and highly corrosive marine environment,advanced composite materials can be used in marine current turbines due to their high strength-to-weight ratios and excellent resistance to corrosion.A composite material marine current turbine(CMMCT),which has significant advantages over traditional designs,has been developed and investigated numerically.A substantial improvement in turbine performance is achieved by placement of a duct to concentrate the *** fluid dynamics(CFD) results show that the extracted power of a ducted CMMCT can be three to four times the power extracted by a bare turbine of the same turbine *** results provide an insight into the hydrodynamic design and operation of a CMMCT used to shorten the design period and improve technical performance.

关键词： Power generation Composite material Computational fluid dynamics (CFD) Ducted composite material marine current turbine (CMMCT)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Response of Microscopic Bubbles to Sudden Decrease of Ambient Pressure in Viscous Compressible Liquid

引用

Journal of Thermal Science 2001年第2期10卷 107-115页

作者： A.P.Szumowski J.piechna WarsawUniversityofTechnologyul.Nowowiejska24 00－665WarsawPoland WarsawUniversityofTechnologyul.Nowow

A shock tube is used to investigate the bubble dynamics under sudden decrease of ambient pressure. Both the oscillating and monotonously growl bubbles were simultaneously observed. Theoretical approach is based, on the Rayleigh-Plesset and Herring’s equations for incompressible and compressible liquids, respectively. Considering the linear approximation of these equations for the quasiequllibrium state, two critical Weber numbers are defined. They enable one to predict the following modes of the bubble expansion: (i) unbounded growth, (ii) asymptotic growth to limited volume and (iii) attenuated oscillations, depending on the pressure force, viscosity and compressibility of the liquid.

关键词： bubble dynamics cavitation.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：