文献类型：期刊文献

中文题名：不对称撞击流的实验研究与数值模拟

英文题名：Experimental research and numerical simulation of asymmetric impinging streams

作者：许建良[1];李伟锋[1];曹显奎[1];代正华[1];刘海峰[1];王辅臣[1];龚欣[1];于遵宏[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2006

卷号：57

期号：2

起止页码：288

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;EI(收录号：2006199868204);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家"863"计划项目(2003AA521021);国家重点基础研究发展规划项目(2004CB217703).

语种：中文

中文关键词：热线风速仪;不对称撞击流;数值模拟

外文关键词：hot wire anemometry; asymmetric impinging streams; numerical simulation

摘要：采用恒温式热线风速仪(CTA)测量不对称撞击流流场.用CFD软件对流场进行数值模拟,得到了和实验相吻合的结果.结果表明,不对称撞击流轴线上轴向速度除撞击面附近外,基本符合圆射流衰减规律.当喷嘴间距一定时,轴线撞击面驻点偏移量随气速比和喷嘴直径的增大而增大.当气速比一定时,轴线撞击面驻点偏移量随喷嘴间距增大而增大.
The characteristics of asymmetric impinging streams were measured with hot wire anemometry and simulated with CFD. The results of numerical simulation were consistent with the results of experiments. The characteristics of axial velocity of asymmetric impinge streams were similar with those of free round jet except in the vicinity of the impinging face. When the distance of two nozzles was fixed, the offset of impinging stagnation point on the axis increased with the ratio of velocity and the nozzle diameter. When the ratio of velocity was fixed, the offset of impinging stagnation point on the axis increased with the distance of two nozzles.