Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2007.05b
- /
- Pages.3467-3472
- /
- 2007
Modeling of Wall Impingement Process of Hollow-Cone Fuel Spray according to Wall Geometry
벽면 형상에 따른 중공 원추형 분무의 벽 충돌 과정 모델링
- Published : 2007.05.30
Abstract
The effects of the wall geometry on the spray-wall impingement process of a hollow-cone fuel spray emerging from a high-pressure swirl injector of the Gasoline Direct Injection (GDI) engine were investigated by means of a numerical method. The ized Instability Sheet Atomization (LISA) & Aerodynamically Progressed Taylor Analogy Breakup (APTAB) model for spray atomization process and the Gosman model were applied to model the atomization and wall impingement process of the spray. The calculation results of spray characteristics, such as a spray development process and a radial distance after wall impingement, compared with the experimental ones by the Laser Induced Exciplex Fluorescence (LIEF) technique. It was found that the radial distance of the cavity angle of 90
Keywords