한국전산유체공학회:학술대회논문집
- 2008.03b
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- Pages.626-629
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- 2008
Ghost Junction Method for Flow Network System Analyses
유동망 시스템 해석을 위한 유령 정션 기법
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Hong, Seok-Woo
(Seoul National University, School of Mechanical and Aerospace Engineering) ;
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Kim, Chong-Am
(Seoul National University, School of Mechanical and Aerospace Engineering)
- Published : 2008.03.26
Abstract
Numerical predictions on flow phenomena in pipe network systems have been considered as playing an important role in both designing and operating various facilities of piping or duct systems, such as water supply, tunnel or mine ventilation, hydraulic systems of automobile or aircraft, and etc. Traditionally, coupling conditions between junction and connected branches are assumed to satisfy conservation law of mass and to share an equal pressure at junction node. However, the conventional methodology cannot reflect momentum interactions between pipes sufficiently. Thus, a new finite volume junction treatment is proposed both to reflect the interchanges of linear momentums between neighbor branches at junction and to include the effect of wall at junction in present work.