Numerical Analysis of Initial Shape of Nozzle Inject Flow

2008-01-0243

04/14/2008

Event
SAE World Congress & Exhibition
Authors Abstract
Content
At the initial stage of injection, the inject flow has not yet broken up and in a range of small atmosphere pressure (16∼500KPa), the tip of the inject flow always forms a shape of mushroom. And the umbrella of the mushroom is always very big and the root of it is always very thin, especially when the atmosphere pressure is relatively low (88KPa, or 100mmHg) (1)(2). These phenomena are not known popularly and the reason of mushroom formation is not clear. In this paper, with MARS (Multi-interfaces Advection and Reconstruction Solver) method (3)(4)(5)for simulating free surface, analysis of inject flow is practiced. The phenomena are reproduced and the reason is cleared that the formation of the mushroom is induced by the momentum exchange between the very high speed fuel flow and the very complex air flow.
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-01-0243
Pages
5
Citation
Fan, Q., Guo, C., Narumiya, K., and Hattori, H., "Numerical Analysis of Initial Shape of Nozzle Inject Flow," SAE Int. J. Passeng. Cars - Mech. Syst. 1(1):184-188, 2009, https://doi.org/10.4271/2008-01-0243.
Additional Details
Publisher
Published
Apr 14, 2008
Product Code
2008-01-0243
Content Type
Journal Article
Language
English