CFD를 이용한 디젤 연료펌프 공급관의 형상에 따른 맥동 저감 비교 분석 Comparison & Analysis of Pulsation Reduction on the Shape of a Supply Pipe of Diesel Fuel Pump using CFD
pp.1273-1278
Fuel pump of a vehicle is a device to supply the fuel from fuel tank to engine. This study analyzed 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 with measured pressure values at an exit by an experiment. Simulation models used commercial and improved model. In this study, the characteristics of the pulsatility reduced in improved model compared to those in 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 inlet and outlet decreased the difference of velocity and pressure. Therefore, the design of fuel supply pipe should be considered numbers and shape of flexure.
1. 서론
2. 해석 방법
2.1 모델 형상 및 격자 생성
2.2 수치해석 방법
3. 해석 결과
4. 결론
References