A FINITE DIFFERENCE SCHEME FOR THE SIMULATION OF A FUEL INJECTION SYSTEM

A finite difference scheme comprising of two step Lax-Wendroff and Leap-Frog techniques used to solve the continuity and momentum equations for a fuel injection system, is described in this paper in addition to the method of characteristics. Newton-Raphson method and Becchi's techniques have been tried to solve the boundary condition equations. A limited comparison with the well known Runge-Kutta scheme showed that the Newton-Raphson method is much simpler to apply and needs less computational time. The validation of the above model has been carried out by comparing the predicted and experimental data of the fuel injection pressures and rates. This comparison showed that the present model could be utilized to predict the performance of the injection system with a reasonable degree of accuracy.

• Supplemental Notes:
  • A Worldwide View of Diesel Combustion Emissions and Analysis, P-130. International Off-Highway Meeting and Exposition Milwaukee, Wisconsin, September 12-15, 1983.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • KUMAR, K
  • Gaur, R R
  • Garg, R D
  • Babu, MKG
• Publication Date: 1983-9

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 235-258
• Serial:
  • Publication of: Arbetarskyddsfonden
  • Publisher: Arbetarskyddsfonden

Subject/Index Terms

• TRT Terms: Finite differences; Forecasting; Fuel injection; Performance; Simulation
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00382417
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Files: HSL, USDOT
• Created Date: Mar 30 1984 12:00AM