Wet steam帮助 教学文档.docx

Wet Steam 模型 学习资料 vickie 2013/5/7 1 /27 目录 17.6.Wet Steam Model Theory湿蒸汽模型理论 2 17.6.1. Overview of the Wet Steam Model 湿蒸汽模型概述 2 17.6.2.Limitations of the Wet Steam Model湿蒸汽模型的局限 3 17.6.3.Wet Steam Flow Equations 湿蒸汽流动方程 3 17.6.4.Phase Change Model相变模型 5 17.6.5.Built-in Thermodynamic Wet Steam Properties 嵌入的湿蒸汽热力学参数 6 .Equation of State状态方程 7 .Saturated Vapor Line饱和蒸汽线 8 .Saturated Liquid Line饱和液体线 8 .Mixture Properties混合物性能 8 25.6.Setting Up the Wet Steam Model 设置湿蒸汽模型 10 25.6.1. Using User-Defined Thermodynamic Wet Steam Properties 11 使用用户定义的湿蒸汽热力学性能 11 25.6.2.Writing the User-Defined Wet Steam Property Functions (UDWSPF) 12 编写用户定义的湿蒸汽性能函数(UDWSPF) 12 25.6.3. Compiling Your UDWSPF and Building a Shared Library File 15 编译你的UDWSPF并构建一个共享库文件 15 25.6.4. Loading the UDWSPF Shared Library File 17 载入UDWSPF共享库文件 17 25.6.5.UDWSPF Example 17 UDWSPF例子 17 25.7.9.Wet Steam Model 湿蒸汽模型 25 . Boundary Conditions, Initialization, and Patching 边界条件、初始化与修补.25 . Solution Limits for the Wet Steam Model 湿蒸汽模型求解的局限 25 . Solution Strategies for the Wet Steam Model 湿蒸汽模型的求解策略 26 25.8.1.Model-Specific Variables 模型特定参数 27 .Wet Steam Model 湿蒸汽模型 27 2/27 17.6.Wet Steam Model Theory 湿蒸汽模型理论 Information is organized into the following subsections: 湿蒸汽模型概述 Overview of the Wet Steam Model 湿蒸汽模型的局限 Limitations of the Wet Steam Model 湿蒸汽流动方程 Wet Steam Flow Equations 相变模型 Phase Change Model 嵌入的湿蒸汽热力学参数 Built-in Thermodynamic Wet Steam Properties 17.6.1.Overview of the Wet Steam Model 湿蒸汽模型概述 During the rapid expansion of steam,a condensation process will take place shortly after the state path crosses the vapor-saturation line. The expansion process causes the super-heated dry steam to first subcool and then nucleate to form a two-phase mixture of saturated vapor and fine liquid droplets known as wet stcam. 在蒸汽的快速扩散中，于状态路径与蒸汽饱和线相交的不久后将发生冷凝过程。扩散过程造 成过热的干蒸汽立即降温，然后凝结成核以形成饱和蒸汽和细小的