Modelling of Spray and In-cylinder Air Flow Interaction in Direct-Injection Engines

2001-28-0071

11/01/2001

Event
SIAT 2001
Authors Abstract
Content
A model is developed based on Lagrangian-drop and Eulerian-fluid procedure to simulate fuel spray structure and the interaction of spray with in-cylinder gas motion. The hollow cone spray is modeled assuming the sheet consisting of blobs of droplets and these blobs are further subjected to secondary breakup. The droplet equations of position, momentum and temperature have been solved by the fourth order Runge-Kutta scheme. The gas phase compressible flow is solved using the finite volume method in conjunction with the SIMPLEC algorithm. The coupling between gas phase and the liquid phase has been achieved through the source terms arising in each phase. Three-dimensional spray and interaction with air motion inside the cylinder have been performed. The results show that the spray structure is well simulated. The model predicts the entrained air velocities and the fuel vapour concentration distribution as a function of time.
Meta TagsDetails
DOI
https://doi.org/10.4271/2001-28-0071
Pages
10
Citation
Abani, N., Bakshi, S., and Ravikrishna, R., "Modelling of Spray and In-cylinder Air Flow Interaction in Direct-Injection Engines," SAE Technical Paper 2001-28-0071, 2001, https://doi.org/10.4271/2001-28-0071.
Additional Details
Publisher
Published
Nov 1, 2001
Product Code
2001-28-0071
Content Type
Technical Paper
Language
English