Experimental study on the internal flow field and spray characteristics of hollow nozzle
作者： Liang Zhao , Mu Wang , Peng Wang , Xiaojing Zhu , Qinggang Qiu
DOI: 10.1016/J.APPLTHERMALENG.2018.06.047
关键词:
摘要: Abstract In this paper, the internal flow field and atomization mechanism of a hollow nozzle under different inlet pressures were experimentally studied. The 3D print technology was used to develop transparent for visualization research. Variations in spray cone angle, rate radial density also obtained working conditions. results show that with increase pressure, growth tends be slower, air swirl chamber is squeezed but more stable shape. addition, caused by broken liquid film at outlet. Furthermore, angle determined divergent section outlet normal operating conditions, exhibit regular shape annulus. As pressure increases, effective area extends center as whole, peak value increases obviously. effect increasing height contradictory pressure.
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