The spray characteristic of gas-liquid coaxial swirl injector by experiment

Using the laser phase Doppler particle analyzer (PDPA), the spray characteristics of gas-liquid coaxial swirl injector were studied. The Sauter mean diameter (SMD), axial velocity and size data rate were measured under different gas injecting pressure drop and liquid injecting pressure drop. Compari...

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Bibliographic Details
Main Authors: Chen, Chen, Zhihui, Yan, Yang, Yang, Hongli, Gao, Shunhua, Yang, Lei, Zhang
Format: Conference Proceeding
Language:English
Subjects:
Atomizing
Gas pressure
Injectors
Liquid injection
Pressure drop
Sauter mean diameter
Spray characteristics
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Summary:Using the laser phase Doppler particle analyzer (PDPA), the spray characteristics of gas-liquid coaxial swirl injector were studied. The Sauter mean diameter (SMD), axial velocity and size data rate were measured under different gas injecting pressure drop and liquid injecting pressure drop. Comparing to a single liquid injection, SMD with gas presence is obviously improved. So the gas presence has a significant effect on the atomization of the swirl injector. What’s more, the atomization effect of gas-liquid is enhanced with the increasing of the gas pressure drop. Under the constant gas pressure drop, the injector has an optimal liquid pressure drop under which the atomization performance is best.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201710804007