Simultaneous Planar OR and Temperature Measurements for the Detection of Lifted Reaction Zones in Premixed Bluff-Body Stabilized Flames

2000 ◽  
pp. 505-519
Author(s):  
D. Most ◽  
V. Holler ◽  
A. Soika ◽  
F. Dinkelacker ◽  
A. Leipertz
Keyword(s):  
Bluff Body ◽  
Temperature Measurements ◽  
Reaction Zones ◽  
Stabilized Flames

Lifted reaction zones in premixed turbulent bluff-body stabilized flames

2002 ◽  
Vol 29 (2) ◽  
pp. 1801-1808 ◽  
Author(s):  
Dieter Most ◽  
Friedrich Dinkelacker ◽  
Alfred Leipertz
Keyword(s):  
Bluff Body ◽  
Reaction Zones ◽  
Stabilized Flames

scholarly journals Wall Temperature Measurements in Gas Turbine Combustors With Thermographic Phosphors

2018 ◽  
Vol 141 (4) ◽  
Author(s):  
Patrick Nau ◽  
Zhiyao Yin ◽  
Oliver Lammel ◽  
Wolfgang Meier
Keyword(s):  
Gas Turbine ◽  
Wall Temperature ◽  
Gas Turbines ◽  
High Speed ◽  
Bluff Body ◽  
Temperature Measurements ◽  
Transient Temperature ◽  
High Time Resolution ◽  
Ceramic Surface ◽  
Precessing Vortex Core

Phosphor thermometry has been developed for wall temperature measurements in gas turbines and gas turbine model combustors. An array of phosphors has been examined in detail for spatially and temporally resolved surface temperature measurements. Two examples are provided, one at high pressure (8 bar) and high temperature and one at atmospheric pressure with high time resolution. To study the feasibility of this technique for full-scale gas turbine applications, a high momentum confined jet combustor at 8 bar was used. Successful measurements up to 1700 K on a ceramic surface are shown with good accuracy. In the same combustor, temperatures on the combustor quartz walls were measured, which can be used as boundary conditions for numerical simulations. An atmospheric swirl-stabilized flame was used to study transient temperature changes on the bluff body. For this purpose, a high-speed setup (1 kHz) was used to measure the wall temperatures at an operating condition where the flame switches between being attached (M-flame) and being lifted (V-flame) (bistable). The influence of a precessing vortex core (PVC) present during M-flame periods is identified on the bluff body tip, but not at positions further inside the nozzle.

Temperature measurements of the bluff body surface of a Swirl Burner using phosphor thermometry

2014 ◽  
Vol 161 (11) ◽  
pp. 2842-2848 ◽  
Author(s):  
Matthias Euler ◽  
Ruigang Zhou ◽  
Simone Hochgreb ◽  
Andreas Dreizler
Keyword(s):  
Body Surface ◽  
Bluff Body ◽  
Temperature Measurements ◽  
Swirl Burner ◽  
Phosphor Thermometry

Extinction Conditions of Low-Speed Ballistic Bluff-Body Stabilized Flames

2017 ◽  
Author(s):  
Christian Engelmann ◽  
Marissa K. Geikie ◽  
Anthony J. Morales ◽  
Kareem Ahmed
Keyword(s):  
Bluff Body ◽  
Low Speed ◽  
Stabilized Flames

scholarly journals Joint Scalar versus Joint Velocity-Scalar PDF Simulations of Bluff-Body Stabilized Flames with REDIM

2008 ◽  
Vol 82 (2) ◽  
pp. 185-209 ◽  
Author(s):  
B. Merci ◽  
B. Naud ◽  
D. Roekaerts ◽  
U. Maas
Keyword(s):  
Bluff Body ◽  
Stabilized Flames ◽  
Joint Velocity
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