Analysis and Optimization on Inside Flows of Fluid in Roll-to-Roll Slot-Die Nozzle by CFD Simulation

CFD 해석을 이용한 롤투롤 슬롯-다이 내부 유동 분석 및 최적화

Kim, Seongyong;Lee, Changwoo

  • Received : 2016.05.24
  • Accepted : 2016.07.13
  • Published : 2016.08.01


Computational fluid dynamic simulation based on the ABAQUS software was conducted to observe the inside flow of slot-die nozzle. The slot-die nozzle was modeled as 3-dimensional structure and three significant parameters were determined: inlet velocity of fluid, reservoir angles, number of strips none of which have been mentioned previously in the literature. The design of experiment, full factorial analysis was performed within determined design and process levels. The simulation result shows the inlet fluid velocity is most significant factor for the flows of inside nozzle. As an interaction effect, reservoir angle is closely related with number of strip that should address when the nozzle is designed. Moreover, the optimized values of each determined parameter were obtained as 35 mm/s of inlet velocity, 3 of strip numbers, and $22^{\circ}$ of reservoir angles. Based on these parameters, the outlet velocity was obtained as 0.53% of outlet uniformity which is improved from 8.67% of nominal results.


Computational fluid dynamics;Design of experiments;Roll-to-Roll system;Slot-Die coating


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Supported by : 한국연구재단