CFD를 이용한 디젤 연료펌프 공급관의 형상에 따른맥동 저감 비교 분석
Comparison & Analysis of Pulsation Reduction on the Shape of a Supply Pipe of Diesel Fuel Pump using CFD
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초록
Fuel pump of a vehicle is a device to supply the fuel from fuel tank to engine. This studyanalyzed the pulsatility on the shape of fuel supply pipe using a CFD(Computational Fluid Dynamics). Numerical analysis was performed to use 3-dimensional incompressible k-ε turbulent model withmeasured pressure values at an exit by an experiment. Simulation models used commercial and improvedmodel. In this study, the characteristics of the pulsatility reduced in improved model compared to thosein commercial model. The pressure loss, which occurs at the flexure, was effective to pulsatile reduction. Commercial and improved model differed by numbers of flexure. The number of flexure between inletand outlet decreased the difference of velocity and pressure. Therefore, the design of fuel supply pipeshould be considered numbers and shape of flexure.
Abstract
Fuel pump of a vehicle is a device to supply the fuel from fuel tank to engine. This studyanalyzed the pulsatility on the shape of fuel supply pipe using a CFD(Computational Fluid Dynamics). Numerical analysis was performed to use 3-dimensional incompressible k-ε turbulent model withmeasured pressure values at an exit by an experiment. Simulation models used commercial and improvedmodel. In this study, the characteristics of the pulsatility reduced in improved model compared to thosein commercial model. The pressure loss, which occurs at the flexure, was effective to pulsatile reduction. Commercial and improved model differed by numbers of flexure. The number of flexure between inletand outlet decreased the difference of velocity and pressure. Therefore, the design of fuel supply pipeshould be considered numbers and shape of flexure.
참고문헌 (8)
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