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Efficient CFD Simulations for In-Cylinder Flows Using Hybrid Grids
Technical Paper
1999-01-1184
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An edge-based, three dimensional, characteristic-based upwind Roe/TVD unstructured flow solver with chemical kinetics and turbulence modeling for simulation of in-cylinder flowfields, CRUNCH, has been extended to improve computational efficiency and utilize multiple element types. Solution efficiency is achieved using an implicit GMRES time integration procedure which is capable of advancing the solution with very large CFL numbers. The grid motion is accomplished using an automated scheme wherein layers of cells are introduced and subsequently removed as valves increase/decrease lift and as the piston moves through its stroke. A multi-zone mesh framework allows various portions of the domain to slide past each other in a noncontiguous manner. Detailed simulations have been performed for the Ford Motor Company 4.6 liter, twin valve engine. Swirl, tumble, and cross-tumble histories compare well with prior simulations performed at Ford Motor Company. Extension of the current method to a 4 valve engine which exhibits valve-valve “interference” is also addressed. With rapid unstructured mesh generation and limited input setup requirements on the user, the flow solver represents a distinct improvement in available CFD methods for simulating in-cylinder flows.
Authors
- N. Sinha - Combustion Research and Flow Technology, Inc.
- P. A. Cavallo - Combustion Research and Flow Technology, Inc.
- A. Hosangadi - Combustion Research and Flow Technology, Inc.
- R. A. Lee - Combustion Research and Flow Technology, Inc.
- H. Affes - Ford Motor Company/Powertrain Operations
- D. Chu - Ford Motor Company/Powertrain Operations
Citation
Sinha, N., Cavallo, P., Hosangadi, A., Lee, R. et al., "Efficient CFD Simulations for In-Cylinder Flows Using Hybrid Grids," SAE Technical Paper 1999-01-1184, 1999, https://doi.org/10.4271/1999-01-1184.Also In
References
- Sinha, N. Cavallo, P.A. Lee, R.A. Hosangadi, A. Kenzakowski, D.C. Dash, S.M. Affes, H. Chu, D. “Novel CFD Techniques for In-Cylinder Flows on Tetrahedral Grids.” SAE Paper 980138 February 1998
- Cavallo, P.A. Hosangadi, A. Lee, R.A. Dash, S.M. “Dynamic Unstructured Grid Methodology with Application to Aero/Propulsive Flowfields.” AIAA Paper 97-2310 June 1997
- Lee, R.A. Hosangadi, A. Cavallo, P.A. Dash, S.M. Sinha, N. “Unstructured Grid Navier-Stokes Solver for Turbulent Reacting Flows with Dynamic Domains.” AIAA Paper 97-2000 July 1997
- Mavriplis, D.J. Venkatakrishnan, V. “A Unified Multigrid Solver for the Navier-Stokes Equations on Mixed Element Meshes.” ICASE Report No. 95-53 Institute for Computer Applications in Science and Engineering July 1995
- Coirier, W.J. Jogenson, P.C.E. “A Mixed Volume Grid Approach for the Euler and Navier-Stokes Equations.” AIAA Paper 96-0762 1996
- Peroomian, O. Chakravarthy, S. Goldberg, U.C. “A ‘Grid-Transparent’ Methodology for CFD,” AIAA Paper 97-0724 1997
- Hosangadi, A. Lee, R.A. Cavallo, P.A. Sinha, N. York, B.J. “Hybrid, Viscous, Unstructured Mesh Solver for Propulsive Applications.” AIAA Paper 98-3153 July 1998
- Barth, T.J. “A 3-D Upwind Euler Solver for Unstructured Meshes.” AIAA-91-1548 June 1991
- Saad, Y. Schultz, M. “GMRES: A Generalized Minimal Residual Algorithm for Solving Nonsymmetric Linear Systems.” SIAM Journal of Scientific and Statistical Computing 7 856 869 1986
- Hosangadi, A. Lee, R.A. York, B.J. Sinha, N. Dash, S.M. “Upwind Unstructured Scheme for Three-Dimensional Combusting Flows.” Journal of Propulsion and Power 12 3 May-June 1996 494 503
- Jou, W.H. Menon, S. “Modes of Oscillations in a Non-Reacting Ramjet Combustor Flows.” Journal of Propulsion and Power 6 5 September-October 1990 535 543
- Erlebacher, G. Hussaini, M.Y. Speziale, D.G. Zang, T.A. “Toward the Large Eddy Simulation of Compressible Turbulent Flows.” J. of Fluid Mech. 238 1992
- Sinha, N. Dash, S.M. Madabhushi, R.K. “Recent Advances in Jet Flowfield Simulation: Part II - Unsteady Flows.” AIAA Paper 93-4391 October 1993
- Barth, T.J. Linton, S.W. “An Unstructured Mesh Newton Solver for Compressible Fluid Flow and its Parallel Implementation.” AIAA Paper 95-0221 January 1995
- Pirzadeh, S. “Progress Towards a User-Oriented Unstructured Viscous Grid Generator.” AIAA-96-0031 January 1996
- Löhner, R. Parikh, P. “Generation of Three-Dimensional Unstructured Grids by the Advancing Front Method.” International Journal of Numerical Methods In Fluids 8 1988 1135 1149
- Pirzadeh, S. “Structured Background Grids for Generation of Unstructured Grids By Advancing Front Method.” AIAA Paper 91-3233 1991
- Pirzadeh, S. “Three-Dimensional Unstructured Viscous Grids by the Advancing-Layers Method.” AIAA Journal 34 1 43 49 January 1996
- GRIDGEN User Manual, Version 12 Pointwise, Inc. 1997