Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2001.11b
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- Pages.921-927
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- 2001
Numerical analysis of flow characteristics with intake port and valve design
흡기포트 및 밸브 형상에 따른 정상 유동 특성
Abstract
Steady flow bench test is a practical, powerful and widely used test in most engine manufacturers to give a design concept of a new engine. In order to use steady data as a performance index, it is necessary to build some database, which can correlate the port characteristics with engine data. However, it is very hard to investigate all port and valve shapes with experimental tools. The steady flow scheme is relatively simple and its results are bulk ones such as flow rate and momentum of flow. Therefore a CFD code can be easily applied to the port evaluation. In this study, the steady flow test was simulated through two and three-dimensional analysis on intake port design for comparing with experimental data and confirming the feasibility of applying analytic method. For this purpose, the effect of valve curvature on flow rate was estimated by a CFD code. There results were compared with those of real steady flow tests. As a result, the 2-D analysis described the phenomena qualitatively well, and also the results of 3-D analysis were almost consistent with experimental data.
Keywords
- Steady flow rig;
- Valve curvature;
- CFD;
- Valve inner seat diameter;
- Valve lift;
- Non-Dimensional Valve Lift;
- Mean Flow Coefficient;
- Non-Dimensional valve Curvature;
- Flow coefficient
- 정상유동장치;
- 밸브곡률;
- 전산유체역학;
- 밸브시트 내경;
- 밸브양정;
- 무차원화된 밸브양정;
- 평균유량계수;
- 무차원화된 밸브곡률;
- 유량계수;