Investigation on High-Viscosity Chemical Waste Liquid Atomizer Based on VOF-DPM

The viscosity of adiponitrile waste liquid is as high 1000 cp. It challenging to spray and atomize the normally. Based on coaxial three-channel pneumatic atomizer, a two-stage supersonic steam atomizer proposed in this paper, atomization process simulated by Fluent software. Compared with traditional simulation method, Volume-of-Fluid Discrete-Phase-Model (VOF-DPM) bi-directional coupling model Adaptive Mesh Refinement (AMR) technology can save mesh improve computational efficiency. processes primary breakup secondary are entirely captured analyzed. results show that Sauter Mean Diameter (SMD) about 116–180 μm, SMD decreases increase inlet absolute pressure, quality meet combustion requirements. This study be used for performance optimization high-viscosity atomizers chemical aerospace industry shorten time engineers spend calculation verify rationality structure.