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Filtered density function simulator on unstructured meshes
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DOI：10.1016/j.jcp.2011.05.015.png)
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Abstract
En 中文
A new computational filtered density function (FDF) methodology is developed for large eddy simulation (LES) of turbulent reacting flows. This methodology is based on a Lagrangian Monte Carlo (MC) FOP solver constructed on a domain portrayed by an unstructured mesh. The base filtered transport equations on this mesh are solved by a finite-volume (FV) method. The consistency of the hybrid FV-MC solver and the realizability of the simulated results are demonstrated via LES of a temporally developing mixing layer. The overall performance of the model is appraised by comparison with direct numerical simulation (DNS) data. The algorithmic implementation in the commercial software ANSYS-FLUENT facilitates future FDF-LES of turbulent combustion in complex configurations. (C) 2011 Elsevier Inc. All rights reserved.
Keywords:
Large eddy simulation
Filtered density function
Monte Carlo methods
Reacting flows
Unstructured mesh
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