An Irregularly Portioned Lagrangian Monte Carlo Method for Turbulent Flow Simulation

Authors:
S. L. Yılmaz;M. B. Nik;M. R. Sheikhi;P. A. Strakey;P. Givi
Affiliations:
Center for Simulation and Modeling, University of Pittsburgh, Pittsburgh, USA 15213;Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, USA 15261;Department of Mechanical and Industrial Engineering, Northeastern University, Boston, USA 02115;National Energy Technology Laboratory, Morgantown, USA 26507;Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, USA 15261
Venue:
Journal of Scientific Computing
Year:
2011

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Abstract

A novel computational methodology, termed "Irregularly Portioned Lagrangian Monte Carlo" (IPLMC) is developed for large eddy simulation (LES) of turbulent flows. This methodology is intended for use in the filtered density function (FDF) formulation and is particularly suitable for simulation of chemically reacting flows on massively parallel platforms. The IPLMC facilitates efficient simulations, and thus allows reliable prediction of complex turbulent flames. Sample results are presented of LES of both premixed and non-premixed flames via this method, and the results are assessed via comparison with laboratory data.