5.1 运输层协议概述 5.2 TCP/IP 体系中的运输层 5.3 用户数据报协议 UDP 5.4 传输控制协议 TCP
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3.1 数据通信系统的模型 3.2 有关信道的几个基本概念 3.3 信道的最高码元传输速率 3.4 信道的极限信息传输速率 3.5 模拟传输与数字传输 3.6 信道复用技术
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1层次结构的概念 2S/OS参考模型 3网络体系结构的基本特性 4局域网和TCP/P的层次结构
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The user FORTRAN routines are used for - Complex features not available through the command language > Non-uniform velocity profiles, variable material properties, moving grid, etc…
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General form of equations solved in CFX-4 Integrating the equation over the control volume transient convection diffusion source
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- The command file defines > Problem characteristics > Physical models and parameters > Material properties > Equation solvers
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Tools / Lists : - is a temporary selection of entities - can be used as immediate input to a select databox - can be given more permanence by storing it as a group
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Steps in Model Creation - build wireframe using points, curves, surfaces and solids. - define constraints for solids with area mismatch. - define boundary conditions (inlet, outlet, walls). - mesh all surfaces
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