The flow pattern design of supercaviting torpedo,like the shape design of conventional bedewed torpedo,occupies an important position in torpedo system design.In this paper,the flow pattern design issues were studied ...The flow pattern design of supercaviting torpedo,like the shape design of conventional bedewed torpedo,occupies an important position in torpedo system design.In this paper,the flow pattern design issues were studied systematically.A set of design criteria and main design requirements were proposed,and the design method and procedure were established.Moreover,the determination method of necessary parameters of cavitator and ventilated system for desired cavity flow pattern was given.Considered the speed and pressure disturbances in the torpedo navigation,a concept named margin design was proposed to solve the supercavitation deformation and instability caused by the disturbances.展开更多
This paper presents a domain-specific middleware definition for petroleum exploration and production(E&P)domain on personal view.With detailed introduction of PetroCOVERY architecture,we examine some key features ...This paper presents a domain-specific middleware definition for petroleum exploration and production(E&P)domain on personal view.With detailed introduction of PetroCOVERY architecture,we examine some key features about E&P middleware and evaluate its architecture.E&P middleware should tier different encapsulation layers.展开更多
文摘The flow pattern design of supercaviting torpedo,like the shape design of conventional bedewed torpedo,occupies an important position in torpedo system design.In this paper,the flow pattern design issues were studied systematically.A set of design criteria and main design requirements were proposed,and the design method and procedure were established.Moreover,the determination method of necessary parameters of cavitator and ventilated system for desired cavity flow pattern was given.Considered the speed and pressure disturbances in the torpedo navigation,a concept named margin design was proposed to solve the supercavitation deformation and instability caused by the disturbances.
文摘This paper presents a domain-specific middleware definition for petroleum exploration and production(E&P)domain on personal view.With detailed introduction of PetroCOVERY architecture,we examine some key features about E&P middleware and evaluate its architecture.E&P middleware should tier different encapsulation layers.
