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Large Eddy Simulation of Liquid Fuel Spray and Combustion with Gradually Varying Grid Tsinghua University
- Format:
- Conference/Event
- Author/Creator:
- Zhou, Zhou, author.
- Conference Name:
- SAE/KSAE 2013 International Powertrains, Fuels & Lubricants Meeting (2013-10-21 : Seoul, South Korea)
- Language:
- English
- Physical Description:
- 1 online resource
- Place of Publication:
- Warrendale, PA SAE International 2013
- Summary:
- In this work, large eddy simulation (LES) with a K-equation subgrid turbulent kinetic energy model is implemented into the CFD code KIVA3V to study the features of liquid fuel spray and combustion using gradually varying grid in a constant volume chamber. The characteristic time-scale combustion model (CTC) incorporating a turbulent timescale is adopted to predict the combustion process and the SHELL auto-ignition model is used to predict auto-ignition. Combustion is also simulated using Parallel Detailed Chemistry with Lu's n-heptane reduced mechanism (58 species), which has been added into the KIVA3V-LES code. The computational results are compared with Sandia experimental data for non-reacting and reacting cases. As a result, LES can capture the complex structure of the spray and temperature distribution as well as the trend of ignition delay and flame lift-off length variations. Better results are obtained using the Parallel Detailed Chemistry than the CTC model
- Notes:
- Vendor supplied data
- Publisher Number:
- 2013-01-2634
- Access Restriction:
- Restricted for use by site license
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