STUDY OF NOZZLE INJECTION PERFORMANCE USING CFD

Abstract

In the current era of modern technology, a deep understanding of fluid flow and computational fluid dynamics (CFD) is crucial in developing and improving the design of engineering equipment, including nozzles. In this research, we apply CFD analysis to study the influence of nozzle design on injection molding nozzle performance. Our main goal is to understand and predict the fluid flow behavior inside the nozzle and can analyze flow characteristics such as speed, pressure. The nozzle geometry used is the inlet nozzle diameter of 35 mm and the outlet diameter of 3 mm. The meshing used is 70,578 elements. This research uses 2 fluid variable parameters, namely, water and polypropylene. pressure contour with fluid parameters, namely water with a maximum pressure value of 1.57 ×10^5 Pasca. At outlets with water fluid parameters, the velocity around the outlet ranges from 1.76 m/s to 1.76 ×10 m/s. Meanwhile, the polypropylene fluid parameters range from 1.74 m/s to 1.74 ×10 m/s. . At the nozzle outlet, the flow velocity increases from the outer side to the middle side of the fluid flow around the nozzle outlet.