Abstract

Pressure Swirl Atomizers (PSAs) are indispensable devices in various industries due to their ability to generate fine sprays that enhance atomization efficiency, fuel-air mixing, and combustion processes. Their widespread use in aerospace propulsion, power generation and agricultural spraying underscores the importance of understanding and optimizing their performance. This review comprehensively examines the extensive body of research on PSAs, focusing on key aspects including design innovations, experimental characterizations, numerical simulations, the influence of geometric and fuel properties on spray characteristics, and the role of high-velocity airflow in improving atomization. By synthesizing findings from both foundational and recent studies, this review identifies critical advancements and outlines gaps where further research is necessary to advance PSA technology.

Keywords:Pressure swirl atomizer; Design; Experimental; Simulation; Geometric parameters; Fuel; High-velocity air flow