The Eulerian Lagrangian Mixing-Oriented (ELMO) model.

Past Lagrangian/Eulerian modeling has served as a poor match for the mixing-limited physics present in many sprays. Though these Lagrangian/Eulerian methods are popular for their low cost, they are ill-suited for the physics of the dense spray core and suffer from limited predictive power. A new spray model, based on mixing-limited physics, has been constructed and implemented in a multi-dimensional CFD code. The spray model assumes local thermal and inertial equilibrium, with air entrainment being limited by the conical nature of the spray. The model experiences full two-way coupling of mass, momentum, species, and energy. An advantage of this approach is the use of relatively few modeling constants. The model is validated with three different sprays representing a range of conditions in diesel and gasoline engines. • A mixing-limited spray model with a two-way coupling with the gas phase. • ELMO is based on ideas of thermodynamic and inertial equilibrium in the dense spray core. • Minimal sensitivity to arbitrary input parameters. • Validated against ECN Spray A, Spray H, and Spray G. • ELMO can be applied to diesel and gasoline sprays without the need to adjust model constants. [ABSTRACT FROM AUTHOR]