Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"lifted flames"”.
-
Sensitivity analysis of low-density jets and flames
… modes for axisymmetric low-density jets and lifted jet diffusion flames. The adjoint global modes provide a map of the most sensitive locations to open-loop external forcing and heating. For the jet flows considered here, the most sensitive region is at the inlet of the domain. The …
-
Investigation of Ozone Initiated Ethylene Oxidation at Room Temperature: Chemistry and Flame Dynamics
… laminar flame dynamics is studied. Stable C2H4 lifted flames are established with oxygen/nitrogen co-flow at reduced oxygen content conditions. By adding certain amounts of O3 into the oxidizer co-flow, non-monotonic flame dynamic behaviors are recorded. Depending on the initial value of the …
-
In Situ Flame Structure Imaging of Composite Propellants using High-Speed Planar Laser-Induced Fluorescence
… propellants burning at 1 atm display jet-like flames above individual coarse AP crystals. If the coarse AP concentration is high enough, group diffusion flames are seen where many coarse AP particles burn with one diffusion flame. At elevated pressures lifted arched diffusion flames are often …
-
Fuel flexible clean combustion of liquid fuels by a novel twin fluid atomization
… Increase in pressure also produced less lifted flames with increased yellow zones. Finally, combustion performance of VO is investigated at elevated pressures. Compared to diesel, VO produced larger flames exhibiting more distributed combustion and lower NOx emissions. At high pressures …
-
Flame Stabilisation in the Transition to MILD Combustion
… in premixed reactors and non-premixed flames. In this study, definitions of MILD combustion are compared and contrasted, with the phenomenological premixed description of MILD combustion extended to describe non-premixed flames. A simple criterion is derived analytically which offers …
-
Turbulent partially premixed combustion: DNS analysis and RANS simulation
… processes in turbulent partially premixed flames. DNS data of a laboratory-scale hydrogen turbulent jet lifted flame is analysed in this study. The partially premixed nature of this flame is established by examining the instantaneous and averaged reaction rates and the "Flame Index", which …