[图书][B] Unsteady combustor physics

TC Lieuwen - 2021 - books.google.com
Explore a unified treatment of the dynamics of combustor systems, including acoustics, fluid
mechanics, and combustion in a single rigorous text. This updated new edition features an …

Nonlinear self-excited thermoacoustic oscillations of a ducted premixed flame: bifurcations and routes to chaos

K Kashinath, IC Waugh, MP Juniper - Journal of Fluid Mechanics, 2014 - cambridge.org
Thermoacoustic systems can oscillate self-excitedly, and often non-periodically, owing to
coupling between unsteady heat release and acoustic waves. We study a slot-stabilized two …

Nonlinear thermoacoustics of ducted premixed flames: the influence of perturbation convection speed

K Kashinath, S Hemchandra, MP Juniper - Combustion and Flame, 2013 - Elsevier
When a premixed flame is placed within a duct, acoustic waves induce velocity perturbations
at the flame's base. These travel down the flame, distorting its surface and modulating its …

Global linear stability analysis of a flame anchored to a cylinder

C Wang, L Lesshafft, K Oberleithner - Journal of Fluid Mechanics, 2022 - cambridge.org
This study investigates the linear stability of a laminar premixed flame, anchored on a
square cylinder and confined inside a channel. Many modern linear analysis concepts have …

A large-eddy-simulation study of combustion dynamics of bluff-body stabilized flames

HG Li, P Khare, HG Sung, V Yang - Combustion Science and …, 2016 - Taylor & Francis
ABSTRACT A comprehensive numerical study is conducted to explore the dynamic
behaviors of a flame stabilized by a triangular bluff body in a straight chamber. The …

Consequences of flame geometry for the acoustic response of premixed flames

T Steinbacher, A Albayrak, A Ghani, W Polifke - Combustion and Flame, 2019 - Elsevier
This study investigates the consequences of flame geometry for the linear response of
laminar premixed flames to acoustic perturbations, as expressed by the flame transfer …

Flame wrinkle destruction processes in harmonically forced, turbulent premixed flames

DH Shin, T Lieuwen - Journal of Fluid Mechanics, 2013 - cambridge.org
This paper describes analyses of the nonlinear dynamics of harmonically forced, turbulent
premixed flames. A key objective of this work is to analyse the ensemble-averaged …

Flame wrinkle destruction processes in harmonically forced, laminar premixed flames

DH Shin, T Lieuwen - Combustion and flame, 2012 - Elsevier
This paper describes numerical and theoretical analyses of the nonlinear dynamics of
harmonically forced, stretch-sensitive premixed flames. A key objective of this work is to …

Matrix-free continuation of limit cycles and their bifurcations for a ducted premixed flame

IC Waugh, K Kashinath, MP Juniper - Journal of fluid mechanics, 2014 - cambridge.org
Many experimental studies have demonstrated that ducted premixed flames exhibit stable
limit cycles in some regions of parameter space. Recent experiments have also shown that …

Velocity and flame wrinkling characteristics of a transversely forced, bluff-body stabilized flame, part I: experiments and data analysis

B Emerson, U Mondragon, V Acharya… - Combustion science …, 2013 - Taylor & Francis
This article describes measurements of the response of bluff-body stabilized flames
subjected to transverse acoustic waves. It is the first of a two-article series. The objective of …