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Fuel-Spray Modeling for application in Internal Combustion Engines

Grant number: 15/10299-9
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): January 01, 2016
Effective date (End): July 31, 2019
Field of knowledge:Engineering - Mechanical Engineering - Thermal Engineering
Principal Investigator:José Antônio Perrella Balestieri
Grantee:Mateus Dias Ribeiro
Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil
Associated scholarship(s):17/04619-6 - Modeling of a direct injection spark ignition engine, BE.EP.DR


Direct injection spark ignition (DISI) engines aim to reduce the specific fuel consumption and achieve the strict emission standards in state of art internal combustion engines. Therefore, in this research project we aim to develop simulations from the phenomenon of fuel spray injection in a combustion chamber using a Lagrangian-Eulerian approach for representing the multiphase flow and the Reynolds Averaged Navier-Stokes (RANS) equations for modeling the turbulence of the continuum medium by means of the open-source CFD library OpenFOAM. In order to validate the obtained results and the developed models, published and unpublished experimental data from the "Spray G" gasoline injection with multi-hole injector test-case from the Engine Combustion Network (ECN) will be employed. The particular phenomena of breakup, heat transfer and evaporation will be analyzed in relation to their global effect on the spray evolution inside the carrier gas. Additionally, investigations on the effect of different boundary conditions, grid size, model constants, turbulence model, initial turbulence, numerical schemes and jet interaction will be made. Finally, after validation of the model against experimental data, a simplified direct injection engine model with moving mesh will be proposed.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RIBEIRO, MATEUS DIAS; BIMBATO, ALEX MENDONCA; ZANARDI, MAURICIO ARAUJO; PERRELLA BALESTIERI, JOSE ANTONIO. Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 40, n. 5, . (15/10299-9)
RIBEIRO, MATEUS DIAS; BIMBATO, ALEX MENDONCA; ZANARDI, MAURICIO ARAUJO; PERRELLA BALESTIERI, JOSE ANTONIO; SCHMIDT, DAVID P.. Large-eddy simulation of the flow in a direct injection spark ignition engine using an open-source framework. INTERNATIONAL JOURNAL OF ENGINE RESEARCH, v. 22, n. 4, . (17/04619-6, 15/10299-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
RIBEIRO, Mateus Dias. Fuel spray modeling for application in internal combustion engines. 2019. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Guaratinguetá Guaratinguetá.

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