摘要
应用作者所取的河道扩散器排放的流场和浓度场的数值模拟计算成果和水槽试验资料为基础，分析了流动水体中多孔射流排放下游泳场和浓度场的主要影响参数，根据射流与环境水体的掺混稀释特性，采用虚拟扰动源的处理方法，给出了描述河道扩散器排放下游流速和浓度分布的公式。该公式的计算结果与数值模拟及实测值吻合良好。
he mathematical model.calculational method and laboratory exporiments are used to pre-dict the velocity and concentration of river multiport diffuser discharges.By means of inte-gral conservative equations,form ulas are presented for calculating the velocity,concentra-tion,diffusion width of mulitiport jet and local entrainment coefficient for the near field of the diffuser based on the experimental date in flume, The ealculated results of the distribu-tion of velocity and concentrat ion are in good agreement with measurements.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1994年第2期65-71,共7页
Journal of Hohai University(Natural Sciences)
关键词
扩散器
流速
浓度
河道
预报
Diffuser Virtual origin Mixing and diffusion The Zone of Flow Establish-ment(ZFE)The Zone of Established Flow (ZEF)
