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정량펌프내부 리필밸브의 개폐 간극에서 발생하는 압력강하 해석Numerical Analysis of Pressure drop in Refill_Valves according to the Opening gap
- Other Titles
- Numerical Analysis of Pressure drop in Refill_Valves according to the Opening gap
- Issue Date
- Dec-2008
- Publisher
- 한국유체기계학회
- Keywords
- Pressure drop(압력강하); Computational Fluid Dynamics(전산유체공학); Check Valve(체크밸브); cavitation(공동현상)
- Citation
- 유체기계 연구개발 발표회 및 정기총회, pp.363 - 368
- Indexed
- OTHER
- Journal Title
- 유체기계 연구개발 발표회 및 정기총회
- Start Page
- 363
- End Page
- 368
- Abstract
- A three-dimensional numerical analysis was carried out on incompressible flows in the refill valve of check valve type containing ball by using commercial code. A numerical simulation is a useful technique to investigate the physical phenomena of the flow field. This study focused on the flow analysis in the tiny gap between valve body and ball in order to prevent pressure drop of refill valve. Characteristics of complex flows including cavitation effect investigated for different gap's size. when length of tiny gap's size become smaller, speed of fluid is rising rapidly and pressure is on the ebb by Bernoulli's theorem. while the pressure fall off below the saturation vapour pressure, we can saw that happening the cavitation phenomenon in this research.
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Related Researcher
- Lee, Do hyung
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)