Turbulent Partially Premixed Flame Modeling Behind a Bluff-Body Using the Flamelet Approach

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Ghadimi, Mohammad Reza | 2020

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 53262 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Salehi, Mohammad Mehdi
Abstract:
This thesis presents turbulent partially premixed combustion modeling behind a bluff-body by using the Flamelet Generated Manifold. The objective of the present work is to develop a 4D FGM program to simulate partially premixed combustion at a reasonable computational cost. Pre-tabulated data of this manifold is obtained by using a correlated joint PDF. An in-house code is developed to build a pre-tabulated library in conjunction with a correlated PDF. Also, an exclusive OpenFOAM solver is created by employing the PIMPLE algorithm. This solver provides the link of the computational domain with the pre-tabulated chemistry. This program is used to simulate Cambridge-Sandia stratified burner that has a high potential for partially premixed combustion. Results suggest that correlated PDF has a better performance than double-beta uncorrelated PDF in general.
Keywords:
Combustion Modeling ; Premixed Combustion ; Stratified Burner ; Bluff-Body ; Correlated Joint-PDF ; OpenFlow Protocol