## Turbulent CombustionThe combustion of fossil fuels remains a key technology for the foreseeable future. It is therefore important that we understand the mechanisms of combustion and, in particular, the role of turbulence within this process. Combustion always takes place within a turbulent flow field for two reasons: turbulence increases the mixing process and enhances combustion, but at the same time combustion releases heat which generates flow instability through buoyancy, thus enhancing the transition to turbulence. The four chapters of this book present a thorough introduction to the field of turbulent combustion. After an overview of modeling approaches, the three remaining chapters consider the three distinct cases of premixed, non-premixed, and partially premixed combustion, respectively. This book will be of value to researchers and students of engineering and applied mathematics by demonstrating the current theories of turbulent combustion within a unified presentation of the field. |

### Contents

1 | |

2 Premixed turbulent combustion | 66 |

3 Nonpremixed turbulent combustion | 170 |

4 Partially premixed turbulent combustion | 237 |

Epilogue | 263 |

Glossary | 265 |

267 | |

295 | |

302 | |

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### Common terms and phrases

asymptotic asymptotic analysis burner burnt gas calculated chemical source term chemistry closure Combustion Institute combustion models corrugated flamelets regime curvature Damköhler number defined density derived direct numerical simulations enthalpy extinction filtered flame brush flame front flame propagation flame structure flame surface area flamelet equations flamelet model flow field fluctuations fuel function G-equation gas expansion gradient inertial range jet diffusion flames jet flames Kolmogorov laminar burning velocity laminar flame large eddy simulation layer length scale Lewis number lift-off height mass fractions mechanism methane mixing mixture fraction mixture fraction space nonpremixed combustion obtained oxidation partially premixed Peters Pittsburgh predict premixed combustion premixed flame premixed turbulent combustion probability density function reaction zones regime reactive scalars Reynolds number scalar dissipation rate scalar fields Symposium International temperature thin reaction zones triple flame turbulent burning velocity turbulent flow turbulent jet diffusion unburnt mixture values variance wavenumber