HWAHAK KONGHAK, Vol.39, No.5, 536-544, October, 2001
교반소요동력 상관식의 수치해석적 연구
Numerical Analysis for Power Correlations in an Agitated Vessel
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초록
교반조내 고점도 유체에 대한 패들 임펠러의 2차원 수치해석 결과를 기초로 지배방정식과 경계조건으로부터 도출된 피라미터를 이용하여 교반임펠러와 교반조벽 사이의 간격이 작은 대형 임펠러로부터 간격이 큰 소형 임펠러에 걸쳐서 광범위하게 적용 가능한 교반소요동력 상관식을 얻었다. 이 상관식에 임펠러 형상을 고려해 넣은 보정 파라미터를 도입하여 앵커 임펠러 및 복잡한 기하형상을 가진 헬리컬 리본 임펠러에도 적용 가능한 수정된 동력상관식을 얻었다.
An attempt has been made to investigate a correlation of power consumption in a laminar region which is based on numerical analysis of two-dimensional flow for paddle impeller in an agitated vessel using geometrical parameters derived theoretically from the govering equations and boundary conditions. It is suggested that the proposed model can be widely adapted from large impeller which has small clearance to small impeller which has large clearance between impellers and agitated wall. Also, a modified model was proposed by introducing correction factors with impeller geometries, which can be applied to paddle, anchor and helical ribbon impellers.
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