搜索结果: 1-15 共查到“机械工程 numerical”相关记录17条 . 查询时间(0.062 秒)
A Numerical Study of Droplet Formation and Behavior using Interface Tracking Methods
A Numerical Study Droplet Formation Interface Tracking Methods
2014/10/24
An adaptive remeshing algorithm has b een develop ed for multiphase flow simulations using the moving-mesh interface tracking (MMIT) technique. The edgeswapping algorithm uses the Delaunay criterion (...
A Study on Small Scale Intermittncy Using Direct Numerical Simulation of Turbulence
A Study on Small Scale Intermittency Direct Numerical Simulation Turbulence
2014/10/24
Theory of turbulence at small scales plays a fundamental role in mo deling turbulence and in retrieving information from physical measurements of turbulent flows. A systematic metho dology based on di...
Numerical Investigation on Fluid Structure Interaction Considering Rotor Deformation for a Centrifugal Pump
centrifugal pump fluid structure interaction coupled solution
2011/6/10
The existing researches for unsteady flow field and the corresponding flow induced vibration analysis of centrifugal pump are mainly carried out respectively without considering the interaction betwee...
Monitoring Computer Numerical Control Machining Progress Based on Information Fusion
machining progress information fusion machining path CNC machining
2011/4/12
To cope with the market demand dynamically, enterprise needs to obtain the production status of work in process real-timely, but the information of machining progress has feature of uncertainty and ca...
Numerical Analysis of Nozzle Clearance’s Effect on Turbine Performance
nozzle clearance variable nozzle turbine (VNT) mixed flow turbine
2011/3/23
Variable nozzle turbine (VNT) has become a popular variable geometry turbine (VGT) technology for the diesel engine application. Nozzle clearance, which can’t be avoided on the hub and shroud side of ...
Numerical Analysis of Nozzle Clearance’s Effect on Turbine Performance
nozzle clearance variable nozzle turbine (VNT) mixed flow turbine
2011/1/17
Variable nozzle turbine (VNT) has become a popular variable geometry turbine (VGT) technology for the diesel engine application. Nozzle clearance, which can’t be avoided on the hub and shroud side of ...
Numerical Analysis of a Spiralgroove Drygas Seal Considering Microscale Effects
numerical analysis Reynolds equation
2010/11/30
A drygas seal system is a noncontact seal technology that is widely used in different industrial applications. Spiralgroove drygas seal utilizes fluid dynamic pressure effects to realize the seal and ...
A numerical study of heat and mass transfer effects on an oscilaltory flow of a viscoelastic fluid with thermal relaxation
Finite difference method Oscillatory flow Heat transfer and Mass transfer
2010/11/25
We have studied numerically effect of heat and mass transfer on an oscillatory flow of a viscoelastic fluid with thermal relaxation. The dimensionless governing equations are solved using an explicit ...
Experiment and Numerical Simulation of Free Water Jet by a Centralbody
centralbody nozzle free water jet phase Doppler particle anemometry(PDPA)
2010/11/25
The recent research about cavitation jet mainly focuses on the organpipe nozzle and triangular nozzle.
Experimental and numerical study of damage initiation mechanism in elastomeric composites
Damage mechanism Finite elements model Rubber composites
2009/12/14
Purpose: Experimental and Finite Element Analysis (FEA) of the damage initiation mechanisms in elastomeric composites were carried out under static loading at room temperature. Double Cantilever Beam ...
重型弧齿锥齿轮铣齿机数控加工模型建立与仿真（Model and Simulation for Numerical Control Machining of Heavy Duty Spiral Bevel Gear Cutting Machine）
弧齿锥齿轮 重型铣齿机 数控加工模型
2009/11/3
通过分析弧齿锥齿轮加工原理及传统机械摇台式弧齿锥齿轮铣齿机的结构和机床运动关系，建立了弧齿锥齿轮铣齿机加工坐标系。采用刀盘主轴进给方式代替传统的整体工件箱部件或摇台部件进给方式，建立了重型弧齿锥齿轮铣齿机三维结构模型。分析了由传统机械摇台式弧齿锥齿轮铣齿机调整参数转变为重型数控弧齿锥齿轮铣齿机调整参数的原理和计算方法，建立了重型弧齿锥齿轮铣齿机的数控加工模型。通过计算实例，得到了重型数控弧齿锥齿轮...
Numerical modeling of steel flow in the six-strand tundish with different flow control devices
steel tundish impact pad device
2009/10/23
Numerical modelling have been extensively used to study the fluid flow phenomena taking place in continuous casting tundish. The paper presents the results of steel flow researches done on tundishs wi...
EFFECT OF PRANDTL NUMBER ON HEAT TRANSFER CHARACTERISTICS IN AN AXISYMMETRIC SUDDEN EXPANSION: A NUMERICAL STUDY
turbulence Prandtl number heat transfer
2009/10/14
Using the standard k-e turbulence model, an incompressible, axisymmetric turbulent flow with a sudden expansion was simulated. Effect of Prandtl number on heat transfer characteristics downstream of t...
Numerical Computation of Fluid Flow in a Magnetohydrodynamic Micropump
Magnetohydrodynamics (MHD) Micropump Lorentz force
2009/10/9
A 2-dimensional model is developed to investigate fluid flow in a magneto-hydrodynamic (MHD) micropump.The transient, laminar, incompressible, and developing flow equations are numerically solved usin...
异构数控系统的网络化集成制造技术（Networked Integration Manufacturing Based on Different Numerical Control Systems）
网络化制造 信息集成 公共对象请求代理体
2009/8/11
为适应网络化制造的功能要求，构建了基于车间异构数控系统的网络化集成通信体系结构。该结构体系融合了设备层信息与车间层控制、管理信息，可实现底层设备与上层应用系统之间的信息交换与融合集成；建立了通信体系的网络通信机制，并论述了应用设备的信息集成，以及与企业内部系统基于公共对象请求代理体系结构的信息集成和与外部系统基于Web服务的信息集成。该方案有助于网络化制造环境下企业内部或企业间的制造信息集成。