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Calculation of the In-Cylinder Flow and Heat Transfer in DI and IDI Diesel Engines
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Abstract
Two computer models were used for simulation of the local flow, wall temperature, and heat transfer in combustion chambers of diesel engines. A multidimensional model linked with the conventional k-e turbulence model was employed for the calculation of in-cylinder phenomena. A finite difference procedure with an expanding/contracting grid in axisymmetric and curvilinear representation was used. Fuel injection, accommodated by an empirical formula of spray, was modeled in the form of gaseous jet. Combustion was treated using experimental data of the heat release rate. The temperature distributions of the walls were calculated by another model of thermal analysis, a finite element method, for the cylinder head, cylinder, comet chamber, and piston. Both models were coupled with boundary conditions, namely, wall functions. In DI engine, the flow and temperature fields of cylinder and piston cavity were calculated. In IDI engine, only the comet chamber was considered for the flow and temperature computations. These calculations were utilized to estimate heat transfer performance of combustion chambers and to investigate the thermal effects of hardware design.
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Citation
Inoue, S., Kobayasi, K., Akatsuka, F., and Fukumori, E., "Calculation of the In-Cylinder Flow and Heat Transfer in DI and IDI Diesel Engines," SAE Technical Paper 890667, 1989, https://doi.org/10.4271/890667.Also In
References
- Gosman, A. D. Johns, R. J. R. Development of a Predictive Tool for In-Cylinder Gas Motion in Engines SAE Paper, 780315 1978
- Gosman, A. D. Jones, R. J. R. Computer Analysis of Fuel-Air Mixing in Direct-Injection Engines SAE Paper, 800091 1980
- Gosman, A. D. Harvey, P. S. Computer Analysis of Fuel-Air Mixing and Combustion in an Axisymmetric D.L Diesel SAE Paper, 820036 1982
- Gosman, A. D. Tsui, A. P. Watkins, A. P. Calculation of Three Dimensional Air Motion in Model Engines SAE Paper, 840229 1984
- Beshay, K. R. Gosman, A. D. Watkins, A. P. Assessments of Multidimensional Diesel Spray Predictions SAE Paper, 861570 1986
- Gosman, A. D. Ahmed, A. M. Y. Measurement and Multidimensional Prediction of Flow in a Axisymmetric Port/Valve Assembly SAE Paper, 87.0592 1987
- Butler, T. D. et al. Los Alamos Scientific Labor. Rep. LA-8129-MS 1979
- Cloutman, L. D. Dukowicz, J. K. Ramshaw, J. D. Amsden, A. A. CONCHAS-SPRAY: A Computer Code for Reactive Flows with Fuel Sprays, Los Alamos National Labor. Rep. LA-9294-MS 1982
- Ramos, J. I. Humphrey, J. A. C. Sirignano, W. A. Numerical Prediction of Axisymmetric Laminar and Turbulent Flows in Motored, Reciprocating Internal Combustion Engines SAE Paper, 790356 1979
- Morel, T. Mansour, N. N. Modeling of Turbulence in Internal Combustion Engines SAE Paper, 820040 1982
- Kondoh, T. Fukumoto, A. Ohsawa, K. Ohkubo, Y. An assessment of a Multi-Dimensional Numerical Method to Predict the Flow in Internal Combustion Engines SAE Paper, 850500 1985
- Matsuoka, S. Kaminoto, T. Urushihara, T. Morita, H. LDA Measurement and Theoretical Analysis of the in-Cylinder Air Motion in a DI Diesel Engine SAE Paper, 850106 1985
- Kuo, T, W. Bracco, F. V Computations of Drop Sizes in Pulsating Sprays and of Liquid-Core Length in Vaporizing Sprays SAE Paper, 820133 1982
- Shirakawa, S. Ohsawa, K. Aoyama, T. Simulation of Spray Combustion in an Axisymmetric Small Direct Injection Diesel Engine IMecE 1987, C01/87 1987
- Ikegami, M. Kidoguchi, Y. Nishiwaki, K. A Multidimensional Prediction of Heat Transfer in Non-fired Engines SAE Paper, 860467 1986
- Dao, K. Uyehara, O.A. Myers, P.S. Heat Transfer Rates at Gas-Wall Interfaces in a Motored Piston Engine SAE Paper, 730632 1973
- Nozue, Y. Satoh, H. Umetani, S. Thermal Stress and Strength Prediction of Diesel Engine Cylinder Head SAE Paper, 830148 1983
- Kamiya, Y. J. Stat. Qua, Cont. 36 639 1985
- Inoue, S. Kobayasi, K Prediction of In-cylinder Flow and Heat Transfer in Direct-Injection Diesel Engines JSME Int. J. 30 264 1987
- Launder, B. E. Spalding, D. B. Mathematical Models of Turbulence 90 Academic Press 1982
- Patankar, S. V. Studies in Convection 1 1 Academic Press 1975
- Patankar, S. V. Numerical Heat Transfer and Fluid Flow 90 McGraw-Hill 1980
- Hiroyasu, H. Arai, M. Trans. Soc. Auto. Eng. Jpn. 21 5 1980
- McNeal, R. H. The Nastran Theoretical Manual, NASA. SP-221 (01) 1972
- Yoshida, A. Ando, T. Inoue, S. Yamaguchi, T. Thermal Analysis of Piston Toyoda Technical Review 7 1 1983