마이크로버블 발생을 위한 벤추리 노즐 형상 연구


Experimental Study of Venturi Nozzle Geometry for Microbubble Generation

이창훈, 김지민

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Microbubble is a part of advanced water treatment technologies, and there are several ways for microbubble generation. A strategy using Venturi (convergent-divergent) nozzle with air-suction holes has advantage of energy and time saving compared with the others. Here, we used 3D printer to make the various nozzle geometries in order to understand two-phase flow in the Venturi nozzle and air-breaking mechanism. It was evaluated the effects of convergent and divergent angles independently on air-suction rate and pressure drop, and the two-phase flow (air bubbles and liquid water) were observed. The convergent angle strongly affect the air-suction rate corresponding with increase of pressure drop. Meanwhile, as the divergent angle increased, it became dominant the minor loss by sudden enlargement of flow area, so that the air-suction rate and pressure drop showed decreased.


1. 서론
2. 실험
3. 이상유동 압력강하 및 겉보기속도
4. 실험결과 및 토의
5. 결론


  • 이창훈 Chang-Hoon Lee. Dept. of Mechnical Engineering, Incheon National University
  • 김지민 Ji-Min Kim. Member, Dept. of Technology Education, Korea National University of Education


자료제공 : 네이버학술정보

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