摘要
对微型燃气轮机旋流燃烧室内湍流流动PIV测量中产生的非轴对称性误差的原因进行了分析,提出了基于CFD技术的旋流燃烧室内湍流流动PIV测量误差的修正方法,将修正后的实验数据与数值计算结果进行了比较,结果表明,该修正方法可以有效地减小旋流燃烧室内湍流流动PIV测量中产生的非轴对称性的误差。
For PIV images capture, installation of a plane measuring side-window on the combustor wall is required, which has influence on the flow patterns in a micro-gas turbine combustor. It is therefore necessary to make correction for the data acquired from PIV experiments in order to approximate them to those for the original combustor without measuring side-window to the full extent. A new correcting method based on the CFD technique for PIV data correction was proposed, and the data from PIV experiments on the swirl combustor model were processed by the correcting method. The revised experimental results were compared with the data from numerical simulation, which found that the correcting method is beneficial to reducing the error of the flow patterns in the PIV images capture.
出处
《实验室研究与探索》
CAS
2008年第9期12-16,共5页
Research and Exploration In Laboratory
基金
山东省科技发展项目(2007GG10006005)
关键词
旋流燃烧室
湍流流动
PIV
数值模拟
修正方法
swirl combustion chamber
turbulence flow
particle image velocimetry
numerical simulation
correcting method
