Numerical simulation of a laboratory-scale turbulent V-flame
| Autor: | V E Beckner, M.J. Lijewski, Ian G. Shepherd, J.F. Grcar, Matthew R. Johnson, John B. Bell, Robert K. Cheng, Marcus S. Day |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Multidisciplinary
Computer simulation Adaptive mesh refinement Turbulence Chemistry Computation Reynolds number Combustion Environmental Energy Technologies Physics::Fluid Dynamics Damköhler numbers symbols.namesake Physical Sciences symbols Vector field Statistical physics simulation detailed chemistry laboratory-scale low Mach number |
| Zdroj: | Bell, J.B.; Day, M.S.; Shepherd, I.G.; Johnson, M.; Cheng, R.K.; Grcar, J.F.; et al.(2005). Numerical simulation of a laboratory-scale turbulent V-flame. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/8hw472x9 |
| Popis: | We present a three-dimensional, time-dependent simulation of a laboratory-scale rod-stabilized premixed turbulent V-flame. The experimental parameters correspond to a turbulent Reynolds number, Re t = 40, and to a Damköhler number, D a = 6. The simulations are performed using an adaptive time-dependent low-Mach-number model with detailed chemical kinetics and a mixture model for differential species diffusion. The algorithm is based on a second-order projection formulation and does not require an explicit subgrid model for turbulence or turbulence/chemistry interaction. Adaptive mesh refinement is used to dynamically resolve the flame and turbulent structures. Here, we briefly discuss the numerical procedure and present detailed comparisons with experimental measurements showing that the computation is able to accurately capture the basic flame morphology and associated mean velocity field. Finally, we discuss key issues that arise in performing these types of simulations and the implications of these issues for using computation to form a bridge between turbulent flame experiments and basic combustion chemistry. |
| Databáze: | OpenAIRE |
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