电场作用微燃烧器的液体乙醇层流扩散燃烧

摘要

采用实验和数值模拟方法对电场作用下微燃烧器的液体乙醇层流扩散燃烧进行研究.研究结果表明,数值模拟高温区与实验拍摄火焰结构外形相似,前者的结构尺寸均高于后者；H/d与Re基本上呈线性增加关系,W/d先随Re线性增加,后变化幅度较小；H/d与电场强度E之间存在波浪曲线关系,波浪整体呈上升趋势,W/d整体上随电场强度E也呈上升趋势；火焰高度和宽度无量纲的数值模拟值与实验计算值吻合良好.%Liquid ethanol laminar flow diffusion micro combustion of micro burner under the influence of electric field was studied through experimental and numerical simulation method. The results showed that experiment flames outline structure shot was similar to numerical simulation high temperature region and the former structure size are higher than the latter, ok H/d is mainly linear relationship with Re. W/d is increasing linearly with Re firstly, amplitude of variation is small latterly. The relation between H/d and E was wave curve; the overall trend of wave increasing. W/d increases also overall with E. The numerical simulation dimensionless values of flame height and width were in good agreement with the experimental calculated values.