Loading...

Simulation of Turbulent Premixed Flame using Laminar Flamelet Decomposition Method

Amir Hossein Fashamiha | 2022

61 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56080 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Salehi, Mohammad Mahdi
  7. Abstract:
  8. The purpose of this study is to simulate a turbulent premixed flame with the help of the Laminar Flamelet Decomposition method. Numerical simulation is considered the main approach for studying this flame. A Bunsen-type premixed burner, which has a novel approach to making different levels of turbulence, has been used for modeling the premixed flame. To reduce the cost of numerical calculations, the Reynolds-averaged Navier-Stokes approach has been chosen for the CFD simulation. In this study, the Laminar Flamelet Decomposition model is the main combustion model for analyzing the turbulent premixed flame and with this method, the rate of reactions for all the reaction species will be calculated considering various rates of strain. For CFD simulation purposes, the flame will be modeled in Ansys Fluent, which is not open-source software. Thus, the Laminar Flamelet Decomposition method should be implemented in Fluent with the help of User Defined Functions. To validate the results from numerical simulations, they will be compared to experimental data. The novelty of this study is to implement the Laminar Flamelet Decomposition method in Fluent. The results from the Laminar Flamelet Decomposition method show that this method has high reliability in high levels of turbulence compared to the unstrained methods
  9. Keywords:
  10. Combustion ; Premixed Flame ; Laminar Flamelets Decomposition ; Turbulent Combustion ; Computational Fluid Dynamics (CFD) ; Laminar Flamelet ; Bunsen-Type Premixed Burner

 Digital Object List

 Bookmark

No TOC