The results indicate that flat-top beam shaping and single-circle beam shaping at the focal plane can all be realized by using three-zone annularphase pupil filters.
A theoretical analysis was carried out for evaporative heat transfer of annular two phase flow of liquid film and high velocity air in vertically heated tubes.
通过理论分析，研究了竖直传热管内降膜-高速空气环状两相流的蒸发换热特性。
3
In the annular gap scrubber, there exists complicated three-dimensional compressible flow associated with the two phase flow and heat transfer between gas and water particle.