This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Adjustment and Verification of Model Parameters for Diesel Injection CFD Simulation
Technical Paper
2006-01-0241
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In co-operation between a diesel engine manufacturer (DEUTZ), a CFD software supplier (FLUENT) and two universities (FH Aalen and RWTH Aachen), the practicability of industrial CFD simulation for the Diesel injection process has been investigated. Since these simulations still rely on several empirical parameters, the main aim of this investigation was to obtain an adjusted set of model parameters in order to achieve realistic results with the current FLUENT version.
To verify the simulations, droplet diameters and velocity distributions of the spray have been measured by Phase Doppler Anemometry (PDA) in a model chamber.
A Lagrangian Discrete Phase Model has been used for spray simulation. Different primary break-up models and two secondary spray break-up mechanisms, the Kelvin-Helmholtz theory and Rayleigh-Taylor instabilities have been investigated. Furthermore, droplet evaporation, droplet collision and the influence of droplet shape on drag have been accounted for.
Recommended Content
Topic
Citation
Waidmann, W., Boemer, A., and Braun, M., "Adjustment and Verification of Model Parameters for Diesel Injection CFD Simulation," SAE Technical Paper 2006-01-0241, 2006, https://doi.org/10.4271/2006-01-0241.Also In
References
- Staudt M. Pawlowski A. Strömungsuntersuchungen mit optischer Messtechnik; Lehrstuhl für Wärme- und Stoffübertragung Aachen University Ergebnisbericht Deutz AG 2004
- Staudt M. Meingast U. Renz U. Experimental Investigation of the Turbulent Flow Field of Vaporizing Diesel Sprays Proc. of the 2002 Fall Technical Conference of the ASME Internal Combustion Engine Division: Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components 39 08.-11 09 2002 New Orleans, Louisiana, USA 289 297
- Liu A. B. Mather D. Reitz R. D. Modeling the Effects of Drop Drag and Breakup on Fuel Sprays SAE Technical Paper 930072 1993
- Reitz R. D. Modeling Atomization Processes in High Pressure vaporization Sprays Atomization and Spray Technology 3 1987
- Patterson M. A. Reitz R. D. Modeling the Effects of Fuel Spray Characteristics on Diesel Engine Combustion and Emission SAE paper 980131 1998
- O'Rourke P. J. Collective Drop Effects on Vaporizing Liquid Sprays Princeton University 1981
- FLUENT User's manual 2005
- Naber J. D. Siebers D. L. Effects of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays SAE 960034 1996
- Alloca L. Belardini P. Bertoli C. Corcione F. De Angelis F. Experimental and numerical Analysis of a Diesel Spray SAE Paper 920576 1992
- Baumgarten C. Pöttker S. Merker G. P. Simulation der Spraybildung in direkteinspritzenden Dieselmotoren Simulation der motorischen Verbennung Haus der Technik 2004
- Kamimoto T. Yokota H. Kobayashi H. Effects of High Pressure Injection on Soot Formation Processes in a Rapid Compression Machine to Simulate Diesel Flames SAE Paper 871610 1987
- Sarre C. v. Künsberg Tatschl R. Spray Modeling/Atomization - Current Status of Break-up Models Imech - Turbulent Combustion of Gases and Liquids - Leading Edge Technologie, Two Day Seminar 1998 The Wawn Lincoln, U.K.
- Hou S. Are S. Schmidt D. P. A Generalized Adaptive Collision Mesh for Multiple Injector Orifices ERC's 13 th International Multidimensional Engine Modeling User's Group Meeting Detroit, USA 2003
- Yi Y. Zhu G.-S. Reitz R. D. High-pressure Spray Combustion Modeling using Continuous Thermodynamics for Diesel Fuels SAE paper 2001-01-0998 2001
- Ranz W. E. Marshall W. R. Jr. Evaporation from Drops, Part I Chem. Eng. Prog. 48 3 141 146 March 1952
- Albrecht H. E. Borys M. Damasche N. Tropea C. Laser Doppler and Phase Doppler Measurement Techniques Springer Verlag Berlin Heidelberg New York 3-540-67838-7 2003
- Settles G. S. Schlieren and Shadowgraph Techniques Springer Verlag Berlin Heidelberg New York 3-540-66155-7 2001
- Hohmann S. Strahlausbreitung und Tropfenverdunstung bei der dieselmotorischen Direkteinspritzung Aachen University Shaker Verlag Aachen, Germany 3-8265-6246-1 1999
- Gonsior D. Boemer A. Waidmann W. CFD Simulation des Verbrennungsprozesses in einem DEUTZ-Dieselmotor Fluent CFD-Forum 2005 Bad Nauheim, Germany