This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Calculations of the Unsteady, Three-Dimensional Flow Field Inside a Motored Wankel Engine
Annotation ability available
Sector:
Language:
English
Abstract
A computer program (referred to as UF-LRC-3D) was developed for studying the unsteady, three-dimensional flow field inside the combustion chambers of motored Wankel engines as a function of engine design and operating parameters. This paper presents the details of the governing equations and the numerical method used by UF-LRC-3D. Also presented are numerical solutions generated by UF-LRC-3D showing the velocity field inside a motored Wankel engine, the mixing of nonhomogeneous fuel-air mixtures that enter through the intake port, and the mixing that takes place when a gaseous fuel is injected into the combustion chamber during compression.
Recommended Content
Authors
Topic
Citation
Steinthorsson, E., Shih, T., Schock, H., and Stegeman, J., "Calculations of the Unsteady, Three-Dimensional Flow Field Inside a Motored Wankel Engine," SAE Technical Paper 880625, 1988, https://doi.org/10.4271/880625.Also In
References
- Eberle, M. K. Klorap, E. D. “An Evaluation of the Potential Gain from Leakage Reduction in Rotary Engines,” SAE Paper No. 730117 1973
- Lawton, D. Millar, D. H. Hutchinson, D. P. “Digital Simulation of Rotary Piston Engines,” Paper C114/37, IMechE Conference on Engine Performance Modelling Institution of Mechanical Engineers 1973
- Danieli, G. A. Ferguson, C. R. Heywood, J. B. Keck, J. C. “Predicting the Emissions and Performance Characteristics of a Wankel Engine,” SAE Paper No. 740186 1974
- Danieli, G. A. “A Performance Model of a Wankel Engine, Including the Effects of Burning Rates, Heat Transfer, Leakage, and Quenching Compared with Measured Time Histories,” Ph.D. Dissertation Department of Mechanical Engineering, MIT 1976
- Benson, R. S. Sierens, R. “Some Gas Dynamic Studies in Wankel Engine,” Paper 64/76, Proceedings of the Institution of Mechanical Engineers 1976
- Benson, R. S. Sierens, R. “Simulation of the Wave Action in the Inlet and Exhaust System and Calculation of the Burnt Mass Fraction in a Rotary Wankel Engine,” Israel Journal of Technology Vol. 15 1977 209 221
- Blair, G. P. Fleck, R. “The Unsteady Gas Flow Behavior in a Charge Cooled Rotary Piston Engine,” SAE Paper No. 770763 1977
- Danieli, G. A. Keck, J. C Heywood, J. B. “Experimental and Theoretical Analysis of Wankel Engine Performance,” SAE Paper No. 780416 1978
- Sierens, R. Baert, R. Winterbone, D. E. Baruah, P. C. “A Comprehensive Study of Wankel Engine Performance,” SAE Paper No. 830332 1983
- Norman, T. J. “A Performance Model of a Spark Ignition Wankel Engine: Including the Effects of Crevice Volumes, Gas Leakage, and Heat Transfer,” Master Thesis Department of Mechanical Engineering, MIT 1983
- Roberts, J. M. “Heat Release Estimation and Prediction of Wankel Stratified-Charge Combustion Engine,” Master Thesis Department of Mechanical Engineering, MIT 1985
- Roberts, J. A. Norman, T. J. Ekchian, J. A. Heywood, J. B. “Computer Models for Evaluating Premixed and DISC Wankel Engine Performance,” SAE Paper No. 860613 1986
- Bracco, F. V. Sirignano, W. A. “Theoretical Analysis of Wankel Engine Combustion,” Combustion Science and Technology Vol. 7 1973 109 123
- Bracco, F. V. Sirignano, W. A. “Theoretical Analysis of Stratified, Two-Phase Wankel Engine Combustion,” Combustion Science and Technology Vol. 8 1973 69 84
- Reitz, R.D. Bracco, F. V. “Studies Toward Optimal Charge Stratification in a Rotary Engine,” Combustion Science and Technology Vol. 12 1976 63 74
- Shih, T. I-P. Yang, S.-L. Schock, H. J. “A Two-Dimensional Numerical Study of the Flow Inside the Combustion Chamber of a Motored Rotary Engine,” SAE Paper 860615 1986
- Shih, T. I-P. Nguyen, H. L. Stegeman, J. “Fluid Flow and Fuel-Air Mixing in a Motored Two-Dimensional Wankel Rotary Engine,” AIAA Paper 86 1556 1986
- Shih, T. I-P. Schock, H. J. Nguyen, H. L. Stegeman, J. “Numerical Simulation of the Flowfield in a Motored, Two-Dimensional Wankel Engine,” Journal of Propulsion and Power Vol.3 1987
- Shih, T.I-P. Schock, H.J. Ramos, J. “Fuel-Air Mixing and Combustion in a Two-Dimensional Wankel Engine,” SAE Paper 870408 1987
- Grasso, F. Wey, M. J. Bracco, F. V. Abraham, J. “Three-Dimensional Computations of Flows in a Stratified-Charge Rotary Engine,” SAE Paper 870409 1987
- Amsden, A.A. Ramshaw, J.D. O'Rourke, P.J. Dukowicz, J.K. “KIVA: A Computer Program for Two- and Three-Dimensional Fluid Flows with Chemical Reactions and Fuel Sprays,” Report LA-10245-MS Los Alamos National Laboratory February 1985
- Amsden, A. A. Ramshaw, J. D. O'Rourke, P. J. Dukowicz, J. K. “Improvements and Extensions to the KIVA Computer Program,” Report LA-10534-MS Los Alamos National Laboratory October 1985
- Yamamoto, K. Rotary Engine Sankaido Co., Ltd. Tokyo, Japan 1981
- Steinthorsson, E. “Three-Dimensional, Numerical Simulation of the Flow Field inside Motored Wankel Engines,” M.S. Thesis Department of Mechanical Engineering, University of Florida 1988
- Smith, R.E. “Two-Boundary Grid Generation for the Solution of the Three-Dimensional Compressible Navier-Stokes Equations,” NASA TM-83123 1981
- Yang, S.-L. Shih, T.I-P. “An Algebraic Grid Generation Technique for Time-Varying Two-Dimensional Spatial Domains,” International Journal for Numerical Methods in Fluids Vol. 6 1986 291 304
- Vinokur, M. “One-Dimensional Stretching Functions for Finite-Difference Calculations,” Journal of Computational Physics Vol. 50 1983 215 234
- Beam, R.M. Warming, R.F. “An Implicit Factored Scheme for the Compressible Navier-Stokes Equations,” AIAA Journal Vol. 16 1978 393 402
- Steger, J.L. “Implicit Finite-Difference Simulation of Flow about Arbitrary Two-Dimensional Geometries,” AIAA Journal Vol. 16 1978 679 686
- Briley, W.R. McDonald, H. “Solution of the Multidimensional Compressible Navier-Stokes Equations by a Generalized Implicit Method,” Journal of Computational Physics Vol. 24 1977 372 397
- Shih, T.I-P. Finite-Difference Methods in Computational Fluid Dynamics Prentice-Hall, Inc. Englewood Cliffs, New Jersey
- Shih, T.I-P. Smith, G.E. Springer, G.S. Rimon, Y. “Boundary Conditions for the Solution of the Compressible Navier-Stokes Equations by an Implicit Factored Method,” Journal of Computational Physics Vol. 52 1983 54 79