Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Fluidic oscillation characteristics of plastic flow meter with the variation of cross-sectional shape of splitters

스플리터 단면형상변화에 따른 플라스틱 유량계의 유동진동특성

  • Lee, Sung-Hee (Department of Shape Manufacturing R&D, Korea Institute of Industrial Technology)
  • 이성희 (한국생산기술연구원 형상제조연구부문)
  • Received : 2021.06.19
  • Accepted : 2021.06.30
  • Published : 2021.06.30
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Abstract

In this study, design technology of a non-mechanical flow meter using fluidic oscillation generated during the fluid flow in the chamber was investigated. To with respect to design a splitter, which is the most important factor in fluid oscillation, a transient flow simulation analysis was performed for three types of shapes and changes in inlet flow velocity. The oscillation characteristics with respect to the time in each case were compared, and it was confirmed that the SM03 model was the best among the presented models. In addition, the FFT analysis of the fluid oscillation results for the SM03 model was used to obtain a linear correlation between the flow velocity change and the maximum frequency, and a frequency of 20.957 (Hz/m/s) per unit flow velocity was obtained. Finally, injection molding simulation and molding experiment of the chamber with the designed splitter were performed.

Keywords

Acknowledgement

본 연구는 한국생산기술연구원 지역혁신기반 단기애로기술지원사업(JF210032)에 의해 수행되었으며, 연구에 도움 주신 신동아전자(주)에 감사드립니다.

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