Title: Modelling of mixture preparation in a small engine with port fuel injection

Authors: T.N.C. Anand; R.V. Ravikrishna

Addresses: Department of Mechanical Engineering, Indian Institute of Science, Bangalore 560012, India ' Department of Mechanical Engineering, Indian Institute of Science, Bangalore 560012, India

Abstract: Computational fluid dynamics simulations are performed to study mixture preparation in the intake manifold of a small engine with port fuel injection. Data from laser-based experiments on two injectors are used as inputs to the spray sub-model. The results reveal improved in-cylinder fuel distribution when the spray is directed onto the intake valve. The Sauter mean diameter of the spray is observed to have an insignificant effect during open valve injection, while the targeting is found to have a large influence. The methodology developed as part of this work can be used to further optimise injection parameters in such engines.

Keywords: computational fluid dynamics; CFD; small engines; spray modelling; PFI; port fuel injection; spray characterisation; two-phase flow; mixture preparation; in-cylinder fuel distribution.

DOI: 10.1504/PCFD.2012.049810

Progress in Computational Fluid Dynamics, An International Journal, 2012 Vol.12 No.6, pp.375 - 388

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 15 Oct 2012 *

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