FINITE ELEMENT ANALYSIS OF THE FLOW PATH OF FOOD 3D PRINTING NOZZLE

Yan Hao LI, Guo Yun

Abstract: Dynamics characteristics of food fluid flow in a FDM (fused deposition) 3D printer capsule tube, the existing 3D printing nozzle structure was improved, and the mathematical model of flow velocity was established by combining the relevant theories of fluid mechanics. A fluid dynamics simulation model of the piston extrusion process was established by using ANSYS FLUENT, Through the analysis of the internal flow field distribution of the nozzle, the flow velocity of the nozzle section and the distribution of the internal pressure of the pipeline, the research shows that the improved nozzle can effectively alleviate the pressure field inside the nozzle and the flow field in the capsule tube more smoothly. The flow rate is stable step by step. This method provides a theoretical basis for studying the difficult problems of improving the 3D printing extrusion process of food, and has certain reference value

Keywords: Food fluid, Piston, Fluid mechanics

DOI: https://doi.org/10.15623/ijret.2018.0709010