Numerical Investigation of the Effects of Chamber Backpressure on HFO Spray Characteristics

In the current study, effect of chamber ambient backpressures and temperatures on non-reacting fuel spray characteristics of heavy fuel oil (HFO) under high pressure injection is numerically studied. Four different chamber backpressures ranging from 0.05 up to 2.8 MPa at two different ambient temperatures have been considered in a medium speed engine. An Eulerian-Lagrangian multiphase scheme is implemented to model HFO interaction with air continuous phase by using Open source computational fluid dynamics (CFD) toolbox of OpenFOAM. Numerical results of fuel spray are validated with good accordance against existing experimental data. Based on the computational findings, enhancement of chamber backpressure results in reduction of temporal spray penetration and increase of spray cone angle at both ambient temperatures. Furthermore, the SMD is found to decrease due to enhancement of chamber backpressures up to 1.4 MPa. Finally, it was found that higher ambient temperature increases the spray penetration length at all chamber backpressures.

• Record URL:
  • https://doi.org/10.1007/s12239-015-0036-z
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/12299138
• Supplemental Notes:
  • Copyright © 2015, The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.
• Authors:
  • Yousefifard, M
  • Ghadimi, P
  • Nowruzi, H
• Publication Date: 2015-4

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 339-349
• Serial:
  • International Journal of Automotive Technology
  • Volume: 16
  • Issue Number: 2
  • Publisher: Korean Society of Automotive Engineers
  • ISSN: 1229-9138
  • EISSN: 1976-3832
  • Serial URL: http://link.springer.com/journal/12239

Subject/Index Terms

• TRT Terms: Atmospheric temperature; Back pressure; Combustion chambers; Engines; Fluid dynamics; Fuel oils; Numerical analysis; Sprays (Materials)
• Subject Areas: Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01558774
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 31 2015 9:06AM