CFD를 이용한 머드 펌프의 성능 예측
Performance Prediction of Mud Pump using CFD Analysis
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참고문헌
키워드
초록
A commercial CFD code is used to caculate the 3-D viscous flow field within the centrifugal pump impeller. Design conditions are changed by pump inlet diameter(203.2㎜) and pump outlet diameter(152.4㎜). Numerical calculation was performed by changing flow rate from 7 to 12m3/min. Working fluids are clean water and muddy water. The viscosity of muddy water is measured by the unsteady capillary of the viscometer. The pump performance is predicted well through the computer simulation. The results are summarized as follows: the pump characteristics of the total pressure, efficiency and shaft power with high viscosity fluids by muddy water was different from those clean water. When the viscosity of the applied fluid increased, the total pressure, and efficiency more decreased than those of clean water. The decreasing gradients of the total pressure and the efficiency were larger than water due to the increased disk friction losses at the duty operation point. The shaft power of clean water and muddy water increased. This study shows that the calculated results agree well with the analysis results of design condition.
Abstract
A commercial CFD code is used to caculate the 3-D viscous flow field within the centrifugal pump impeller. Design conditions are changed by pump inlet diameter(203.2㎜) and pump outlet diameter(152.4㎜). Numerical calculation was performed by changing flow rate from 7 to 12m3/min. Working fluids are clean water and muddy water. The viscosity of muddy water is measured by the unsteady capillary of the viscometer. The pump performance is predicted well through the computer simulation. The results are summarized as follows: the pump characteristics of the total pressure, efficiency and shaft power with high viscosity fluids by muddy water was different from those clean water. When the viscosity of the applied fluid increased, the total pressure, and efficiency more decreased than those of clean water. The decreasing gradients of the total pressure and the efficiency were larger than water due to the increased disk friction losses at the duty operation point. The shaft power of clean water and muddy water increased. This study shows that the calculated results agree well with the analysis results of design condition.
참고문헌 (8)
- A. J. Stepanoff, "Centrifugal and Axial Flow Pumps", pp.33~46 (1957), Kriger Publishing Company malabar
- Y. S. Choi, "Performance Analysis of the Centrifugal Pump Impeller Using Commercial CFD Code", Journal of Fluid Machinery, 4(1), pp.38~45 (2001)
- J. Li, "Optimum Design on Impeller Blade of Mixed-flow Pump based on CFD", Procedia Engineering, 31, pp.187~195 (2012)
- S. Derakhshan, "Numerical Shape Optimization of a Centrifugal Pump Impeller using Artificial Bee Colony Algorithm", Computers &Fluids, 81(2), pp.145~151 (2013)
- "ANSYS CFX-15.0 Solver Theory", Ansys Inc, ~ (2014)
- C. David, "Turbulence Modeling For CFD", ~ (2000)
- "KS B 6301, Testing Methods for Centrifugal Pumps, Mixed Flow Pump and Axial Flow Pump", Korean Standard Association, ~ (2011)
- "KS B 6302, Measurement Methods of Pump Discharge", Korean Standard Association, ~ (2011)