摘要
多重网格法在燃烧室内流场数值模拟中的应用林文漪，杨彬，周力行（清华大学工程力学系北京１０００８４）关键词：多重网格，数值模拟，湍流一、前言现代燃烧设备多具有复杂的流场结构、多级燃烧的特点及庞大的几何尺寸，无疑地为其数值模拟带来了困难。为了保证计算精度...
A multilevel multigrid method, combined with the two-equation turbulence model and P-V algorithm, has been used in the numerical simulation of recirculating turbulent flow fields in combustors. The predictions using a double-level grid system have beed compared with that using a single-level grid system and that from experiments and a good agreement has been found. The saving in CPU time using the multilevel multigrid system is 35% over the single-level grid system with the same accuracy. In some cases, multilevel multigrid system can improve the iteration-convergence. The MULSTAR-2 Code developed in this work can be used in numerical modeling of any complex flow filed in combustors.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1994年第2期219-222,共4页
Journal of Engineering Thermophysics
关键词
多重网格
数值模拟
湍流
燃烧室
multilevel multigrid, numercial modeling, turbulence.
