摘要
采用ＳＩＭＰＬＥ算法，结合高雷诺数Ｋ一ε紊流模型、壁面函数法、混合长度理论和 斜交曲线坐标系，编制通用计算程序，研究在给定的主流条件下（即一定的速度、温度、压 力和紊流度等），在不同的射流流速及不同的开孔情况和开孔度下，流道内速度场的变化规 律。通过计算和分析表明，曲壁射流在一定程度上改善了原有的气相速度场结构，为今后应 用紊动射流进行防磨研究提供了思路。
SIMI,LE algorithm, combined with k-s high Reynolds number turbulence model, the wall function method, the mixed length theory and oblique crossing curved reference frame, is used in this paper. A general-purposed computation program has been written to investigate the changing rule of velocity field in a flow passage under the certain conditions of the main flow (including the definite velocity, temperature, pressure and turbulence level, etc.), via different fluidic flow velocity, different hole-opening states and holes' sizes. It gives dew for applying turbulent jet to anti-chafe research. It also indicates, with computation and analysis, that flexural wall jet current can improve the original structure of gas phase flow field to a certain degree.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
1999年第2期75-79,共5页
Journal of North China Electric Power University：Natural Science Edition
关键词
紊动射流
紊流模型
防磨
风机
数值模拟
turbulent jet, turbulence model, orbit, oblique crossing curved reference frame
