摘要
采用双曝光激光全息干涉法，在试验气缸中，非接触地同时测量出燃料喷雾的三维浓度场温度场分布。利用代用燃料戊烷在４２３Ｋ，４—６ＭＰａ的试验条件下，记录了不同压力及不同喷射时刻的全息图。将喷雾束做为轴对称的位相物体，运用Ａｂｅｌ变换求出折射率的三维分布，进而由折射率数值计算出油气的浓度及温度分布，给出了试验条件数据结果和分布曲线。
The double exposure holographic interferometry is applied to the measure- ment of concentration and temperature 3-D distribution of fuel sprays in a bomb. Under the condition of 423K and 4-6 MPa, the holograms of different instants are taken. Taking fuel sprays as axial symmetric phase objects and applying Abel transform, the 3-D distributions of index of refraction of spr- ays are obtained. The 3-D distribution of concentration and temperature of fuel sprays are calculated by the data of index of refraction. Finally the data and curves are presented for the distribution of concentration and temperature of fuel sprays.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1989年第4期405-410,共6页
Journal of Dalian University of Technology
关键词
全息干涉法
测量
柴油机
压力喷雾
pressure atomization
diesel engines
temperature distribution
concentration distribution
holographic interferometry
cylinder
three-dimensional
