Modeling Atomization and Break Up in High-Pressure Diesel Sprays Institut Français du Pétrole

Format:

Conference/Event

Author/Creator:

Habchi, C., author.

Conference Name:

SAE International Congress & Exposition (1997-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

Computation of high pressure Diesel injection requires improvement of present spray atomization and droplet breakup models. The surface wave instability atomization (Wave) model of Reitz [2] has been coupled to a new breakup model (FIPA) which is based on the experimental correlations of Pilch and others[3]. It has been integrated in the 3D KMB code [1] derived from the Kiva 2 code [4] of Los Alamos already including a stochastic Lagrangian description of sprays. The droplet breakup FIPA model was first fitted and validated using the monodisperse drop breakup experiments of Liu and Reitz [5]. The response of the modified spray model including the global Wave-FIPA breakup model is compared to well characterized data obtained in a high pressure and temperature vessel. This vessel is fitted with a common-rail injection system with a single hole injector tip. Conditions simulating a direct injection diesel engine are obtained (ρg = 25kg/m3, Pg = 3 MPa and 6.1 MPa, Tg = 400K and 800K, Pinj from 40 to 150 MPa). Liquid and vapor penetrations in the vessel are well reproduced, even for high injection pressure cases and with or without evaporation

Notes:

Vendor supplied data

Publisher Number:

970881

Access Restriction:

Restricted for use by site license