Time-resolved three-dimensional imaging of flame refractive index via endoscopic background-oriented Schlieren tomography using one single camera

H Liu, C Shui, W Cai - Aerospace Science and Technology, 2020 - Elsevier
Due to the recent progresses in sensor and laser technologies, volumetric tomography has
become a popular diagnostic for combustion studies. Background-oriented Schlieren …

Measurements from flame chemiluminescence tomography of forced laminar premixed propane flames

SM Wiseman, MJ Brear, RL Gordon, I Marusic - Combustion and Flame, 2017 - Elsevier
The unsteady, visible, chemiluminescence fields of two non-axisymmetric, forced, laminar,
premixed, propane–air flames are tomographically reconstructed using between 3 and 36 …

Role of induced axial acoustics in transverse acoustic flame response

T Smith, B Emerson, W Proscia, T Lieuwen - Combustion and Flame, 2018 - Elsevier
This paper addresses the mechanisms through which transverse acoustic oscillations excite
unsteady heat release. Forced and self-excited transverse acoustic instability studies to date …

Comparison of single-and multinozzle reacting swirl flow dynamics

TE Smith, IP Chterev, BL Emerson, DR Noble… - Journal of Propulsion …, 2018 - arc.aiaa.org
This paper compares flow structures in a single-and triple-nozzle swirl combustor. Realistic
combustor hardware usually contains several nozzles; however, test facilities for studying …

Axial evolution of forced helical flame and flow disturbances

TE Smith, CM Douglas, BL Emerson… - Journal of Fluid …, 2018 - cambridge.org
This paper presents 5 kHz stereo particle image velocimetry and OH planar laser induced
fluorescence measurements of transversely forced swirl flames. The presence of transverse …

Study of flow patterns and impingement heat transfer for an annular array of eight co-rotating dual-swirling flames

P Singh, RK Velamati, C Prathap, A Mohammad… - International Journal of …, 2019 - Elsevier
Performance of gas burners can be optimized by improvements in their design and proper
selection of operating parameters associated with combustion and heat transfer …

Flow dynamics in single and multi-nozzle swirl flames

T Smith, B Emerson, I Chterev… - … Expo: Power for …, 2016 - asmedigitalcollection.asme.org
This paper describes an analysis of the unsteady flow structures in a single nozzle and triple
nozzle swirl combustor (with nozzle spacing of s/D= 2.9). It was motivated by a prior study by …

Nonlinear flame response dependencies of a V-flame subjected to harmonic forcing and turbulence

A Roy, RI Sujith - Combustion and Flame, 2019 - Elsevier
We study the dependence of the flame sheet response of an open V-flame when subjected
to simultaneous but independently controlled–(1) narrowband, coherent disturbances,(2) …

Lean-premixed, swirl-stabilized flame response: Flame structure and response as a function of confinement

AJ De Rosa, SJ Peluso… - … of Engineering for …, 2018 - asmedigitalcollection.asme.org
The effect of confinement (flame–wall interactions) on the response of a turbulent, swirl-
stabilized flame is experimentally examined, with a focus on the shape and structure of …

Computational fluid dynamics analysis of aerodynamics and impingement heat transfer from hexagonal arrays of multiple dual-swirling impinging flame jets

P Singh, RK Velamati… - Journal of Heat …, 2020 - asmedigitalcollection.asme.org
Radiative furnaces pose significant thermal inertia and single impinging flames have been
observed to cause occurrence of hotspots on the target surface. Multiple burners arranged in …