This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Flow Modeling for the Branched Intake Manifold Engine
Annotation ability available
Sector:
Language:
English
Abstract
A flow model is a convenient tool for developing the engine intake system. Two flow models for the branched engine intake were developed by the finite difference method and the method of characteristics. The results from the models were compared with the experimental data and the appropriate boundary conditions were established for each model. Modeling the flow at the intake and exhaust valves with a cylinder and at the pipe branches were the most critical part of the flow models affecting the accuracy of the solutions.
From two models, it was found that the finite difference model was simpler than the characteristic model in formulation with the better accuracy. The effects of valve timings and intake geometry were studied by the flow models to design the optimum intake system.
Recommended Content
Authors
Citation
Sung, N., Song, J., Jeong, Y., and Kim, C., "Flow Modeling for the Branched Intake Manifold Engine," SAE Technical Paper 960079, 1996, https://doi.org/10.4271/960079.Also In
References
- Heywood J. B. Internal Combustion Engine Fundamentals Mcgraw-Hill 1988
- F. Taylor. C. The Internal Combustion Engine in Theory and Practice 1 ZMIT Press Cambridge, Mass 1968
- Hwang I. Y. “The Optimization of Intake and Exhaust System for DOHC Gasoline Engine” KIA motors 1991
- Shimamoto Y. “A Use of the Effect in Intake and Exhaust Manifold(Part I ) Internal Combustion Engine(JAPAN) 10 108 1971
- Ohata A. Ishida Y. “Dynamic Inlet Pressure and Volumetric Efficiency of Four Cycle Four Cylinder Engine” SAE Paper No. 820407 1982
- Shapiro A. H. The Dynamics and Thermodynamics of Compressible Fluid Flow, Ronald Press 1 2 1953 1954
- Benson R. S. The Thermodynamics and Gas Dynamics of Internal-Combustion Engines Clarendon Press 1 Oxford 1982
- Benson R. S. Garg R. D. Woollatt D. “A Numerical Solution of Unsteady Flow Problems” Int. J. Mech. Sci. 6 117 144 1964
- Benson R. S. Amand W. J. D. Baruah P. C. “A Simulation Model IncludingIntake and Exhaust System for a Single Cylinder Four-Stroke Cycle Spark Ignition Engine” Int. J. Mech. Sci. 17 97 124 1975
- Benson R. S. “Numerical Solution of One -Dimensional Non-Steady Flow with Supersonic and Subsonic Flows and Heat Transfer” Int. J. Mech. Sci. 14 635 642 1972
- Watson N. “Resonant Intake and Variable Geometry Tobocharging Systems for a V8 Diesel Engine” Proc. Instn. Mech. Engrs. 1982
- Richtmyer R. D. Morton K. W. Difference Methods for Initial Value Problems Wiley Interscience 1967
- Hoffmann K. A. Chiang S. T. Computational Fluid Dynamics for Engineers I 1993
- Takizawa M. Uno T. Oue T. Yura T. “A Study of Gas Exchange Process Simulation of an Automotive Multi - Cylinder Internal Combustion Engine” SAE Paper No. 820410 1982
- Blair G. P. “Non-isentropic Analysis of Branched Flow in Engine Ducting” SAE Paper No. 940395 1994
- Shimarnoto Y. Kanamaru K. Choi J. Maeda I. “An Attempt to Improve the Characteristics of Volumetric Efficiency by a Resonator in Four Cycle Diesel Engines” JSME International journal 30 259 1987
- Sung N. W. Choi J. S. Jeong Y. “A Study on the Flow in the Engine Intake System” SAE paper No. 952067 1995
- Sung N. W. Kang K. Y. “Deyelopment of Design and Manufacturing Technology of Turbomachinery” KIMM Technical Report 1987