This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Advances Toward the Goal of a Genuinely Conjugate Engine Heat Transfer Analysis
Technical Paper
2019-01-0008
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
As the design of engines advances and continues to push the capabilities of current hardware closer to their durability limits, more accurate and reliable analysis is necessary to ensure that designs are robust. This research evaluates a method of conjugate heat transfer analysis for a diesel engine that combines the combustion CFD, Engine FEA, and cooling jacket CFD with the aim of getting more accurate heat loss predictions and a more accurate temperature distribution in the engine than with current analysis methods. A 15.0 L Cummins ISX heavy duty engine operating at 1250 RPM and 15 bar BMEP load is selected for this work. Spray combustion computational fluid dynamics (CFD) simulations are performed for the diesel engine and the results are validated with experimental data. Finite Element Analysis (FEA) simulations were performed in a separate software platform. Data interchanges between CFD and FEA software codes were performed at specified sub-cycle engine intervals and the simulations ran for multiple engine cycles. A comprehensive CFD-FEA conjugate heat transfer (CHT) methodology is proposed and the accuracy of this method is measured against the existing diesel engine analysis procedures. The detailed CHT model includes the coolant circuit and oil gallery. The CHT results from this detailed method are compared with a traditional thermal FEA method developed in-house at Southwest Research Institute that uses experience based heat transfer coefficients (HTCs) that have been validated to testing. Finally, point-wise measurements of temperature at various locations on the cylinder head are compared with simulation results and are found to correlate reasonably well.
Recommended Content
Authors
Topic
Citation
Hoffmeyer, M., Moiz, A., Hoag, K., Megel, A. et al., "Advances Toward the Goal of a Genuinely Conjugate Engine Heat Transfer Analysis," SAE Technical Paper 2019-01-0008, 2019, https://doi.org/10.4271/2019-01-0008.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Borman , G. and Nishiwaki , K. Internal-Combustion Engine Heat Transfer Progress in Energy and Combustion Science 13 1 1 46 1987 10.1016/0360-1285(87)90005-0
- Nuutinen , M. , Kaario , O. , and Larmi , M. Conjugate Heat Transfer in CI Engine CFD Simulations SAE Technical Paper 2008-01-0973 2008 10.4271/2008-01-0973
- Urip , E. and Yang , S. An Efficient IC Engine Conjugate Heat Transfer Calculation for Cooling System Design SAE Technical Paper 2007-01-0147 2007 10.4271/2007-01-0147
- Fontanesi , S. and McAssey , E. Experimental and Numerical Investigation of Conjugate Heat Transfer in a HSDI Diesel Engine Water Cooling Jacket SAE Technical Paper 2009-01-0703 2009 10.4271/2009-01-0703
- Kundu , P. , Scarcelli , R. , Som , S. , Ickes , A. et al. Modeling Heat Loss through Pistons and Effect of Thermal Boundary Coatings in Diesel Engine Simulations Using a Conjugate Heat Transfer Model SAE Technical Paper 2016-01-2235 2016 10.4271/2016-01-2235
- Cicalese , G. , Berni , F. , Fontanesi , S. , D'Adamo , A. et al. A Comprehensive CFD-CHT Methodology for the Characterization of a Diesel Engine: From the Heat Transfer Prediction to the Thermal Field Evaluation SAE Technical Paper 2017-01-2196 2017 10.4271/2017-01-2196
- Richards , K.J. , Senecal , P.K. , and Pomraning , E. 2018
- Tao , F. , Golovitchev , V. , and Chomiak , J. Self-Ignition and Early Combustion Process of N-Heptane Sprays under Diluted Air Conditions: Numerical Studies Based on Detailed Chemistry SAE Technical Paper 2000-01-2931 2000 10.4271/2000-01-2931
- Schmidt , D.P. and Rutland , C.J. A New Droplet Collision Algorithm Journal of Computational Physics 164 1 62 80 2000 10.1006/jcph.2000.6568
- Amsden , A.A. 1997
- Senecal , P. , Pomraning , E. , Richards , K. , Briggs , T. et al. Multi-Dimensional Modeling of Direct-Injection Diesel Spray Liquid Length and Flame Lift-Off Length Using CFD and Parallel Detailed Chemistry SAE Technical Paper 2003-01-1043 2003 10.4271/2003-01-1043
- Wang , B. , Miles , P. , Reitz , R. , Han , Z. et al. Assessment of RNG Turbulence Modeling and the Development of a Generalized RNG Closure Model SAE Technical Paper 2011-01-0829 2011 10.4271/2011-01-0829
- Angelberger , C. , Poinsot , T. , and Delhay , B. Improving Near-Wall Combustion and Wall Heat Transfer Modeling in SI Engine Computations SAE Technical Paper 972881 1997 10.4271/972881
- Issa , R.I. Solution of the Implicitly Discretised Fluid Flow Equations by Operator-Splitting Journal of Computational Physics 62 1 40 65 1986 10.1016/0021-9991(86)90099-9
- Rohsenow , W.M. A Method of Correlating Heat Transfer Data for Surface Boiling Liquids Transactions of the ASME 74 969 1952
- Megel , M. , Westmoreland , B. , Jones , G. , Phillips , F. et al. Development of a Structurally Optimized Heavy Duty Diesel Cylinder Head Design Capable of 250 Bar Peak Cylinder Pressure Operation SAE Int. J. Engines 4 3 2736 2755 2011 10.4271/2011-01-2232
- Finlay , I. , Boyle , R. , Pirault , J. , and Biddulph , T. Nucleate and Film Boiling of Engine Coolants Flowing in a Uniformly Heated Duct of Small Cross Section SAE Technical Paper 870032 1987 10.4271/870032
- Szekely , G. and Alkidas , A. A Two-Stage Heat-Release Model for Diesel Engines SAE Technical Paper 861272 1986 10.4271/861272