Application of the conditional source-term estimation model for turbulence–chemistry interactions in a premixed flame
| Autor: | Mohammad Salehi, Kyle J. Daun, W. K. Bushe |
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| Rok vydání: | 2011 |
| Předmět: |
Premixed flame
Chemistry General Chemical Engineering General Physics and Astronomy Energy Engineering and Power Technology Thermodynamics General Chemistry Mechanics Inverse problem Combustion Integral equation law.invention Physics::Fluid Dynamics Fuel Technology law Modeling and Simulation Bunsen burner Vector field Physics::Chemical Physics Reynolds-averaged Navier–Stokes equations Scalar field |
| Zdroj: | Combustion Theory and Modelling. 16:301-320 |
| ISSN: | 1741-3559 1364-7830 |
| DOI: | 10.1080/13647830.2011.621029 |
| Popis: | Conditional Source-term Estimation (CSE) is a closure model for turbulence–chemistry interactions. This model uses the first-order CMC hypothesis to close the chemical reaction source terms. The conditional scalar field is estimated by solving an integral equation using inverse methods. It was originally developed and has been used extensively in non-premixed combustion. This work is the first application of this combustion model for a premixed flame. CSE is coupled with a Trajectory Generated Low-Dimensional Manifold (TGLDM) model for chemistry. The CSE-TGLDM combustion model is used in a RANS code to simulate a turbulent premixed Bunsen burner. Along with this combustion model, a similar model which relies on the flamelet assumption is also used for comparison. The results of these two approaches in the prediction of the velocity field, temperature and species mass fractions are compared together. Although the flamelet model is less computationally expensive, the CSE combustion model is more general and... |
| Databáze: | OpenAIRE |
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