A comparative study of breakup models in diesel fuel spray

The purpose of the current study is to investigate theeffectiveness of different models of droplet break-up and tocompare a few of a diesel engine’s spray characteristics,numerically. An in-house computational fluid dynamicscode is used to solve the nonlinear transport equationscoupled with dispersed phase equations in a Eulerian-Lagrangian manner. For this purpose, we used threeoutstanding breakup models in a constant volume chamberto investigate exactly their performance and not to includeother factors’ effect on the results. Final results depictedthat a novel model which has been proposed by the authorshows better predictions in calculating spray tip penetrationin comparison to available experimental data. So it isrecommended that by using this model, a more precisesimulation of in-cylinder flows will be achieved.

کلیدواژه ها:

Breakup ، Collision ، Eulerian-Lagrangian ، Weber Number ، Turbulence