摘要
本文对存在自发凝结的湿蒸汽两相流动建立了完全欧拉坐标系统下的数理模型。采用考虑了真实流体性质的 LU-SGS-GE隐式时间推进算法和改良型高精度、高分辨率MuSCL TVD差分格式求解存在自发凝结的汽液两相流动控制方程组。文中水及水蒸汽性质数据全部取自IAPWS-IF97国际标准公式。对某Laval缩放喷管内的湿蒸汽自发凝结流动的数值模拟结果表明,本文所采用的数理模型及计算方法是有效和可靠的。
A mathematic physical model of non-equilibrium spontaneous condensing wet steam flow was introduced under Eulerian coordinates. The three-dimensional Navier-Stokes equations were solved using LU-SGS-GE implicit scheme and modified Higher-order, high resolution MUSCL TVD scheme. All of the steam/water properties were gotten from IAPWS-IF97 formulas. A wet flow inside Laval nozzle was calculated and the results showed a good agreement with experimental data.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2006年第1期42-44,共3页
Journal of Engineering Thermophysics
基金
国家重点基础研究发展规划资助项目(No.G1999022306)国家自然科学基金资助项目(No.50076019)
关键词
自发凝结
湿蒸汽
数值模拟
两相流动
真实流体性质
spontaneous condesing flow
wet steam
numerical simulation
two-phase flow
real flow
