The hydrofoil-tip mixer can be used to create the desired material by mixing the two materials in various industries, especially in the waste water and sewage water treatment. The purpose of this study is to clarify flow characteristics induced by 3 types impellers in a mixing tank by CFD. In this study, flat plate, hydrofoil and hydrofoil-tip type impellers are used and the rotating speeds of impellers are 25, 35, 45 rpm. The results in present study show that hydrofoil-tip type is the most proper impeller for mixing in the waster water treatment tank and reducing required power of rotating impeller. This results can be used for the design of the mixing tank in the waste water treatment system.

Abstract
 1. 서론
 2. 수치해석
  2.1 해석방법 및 변수
  2.2 모델링 및 격자생성
 3. 해석결과 및 고찰
 4. 결론
 후기
 참고문헌

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• 강혁재(경남과학기술대학교 일반대학원 자동차공학과) | Hyuk-Jae Kang