Scalar structure of turbulent stratified swirl flames conditioned on local equivalence ratio
نویسندگان
چکیده
منابع مشابه
Equivalence Ratio Effects in Turbulent, Premixed Methane-air Flames
Turbulent methane flames exhibit a change in Markstein number as the equivalence ratio changes. In this paper, we demonstrate how these changes in Markstein number are related to shifts in the chemistry and transport. We focus on the analysis of simulations of two-dimensional premixed turbulent methane flames at equivalence ratios φ=0.55 and φ=1.00 computed using the GRI-Mech 3.0 mechanism. The...
متن کاملThree-scalar Imaging in Turbulent Non-premixed Flames of Methane
Raman scattering from nitrogen in laminar (Re 4 1600) and turbulent (Re 4 15,000) non-premixed flames of diluted methane has been investigated as a means of complementing the two-scalar mixturefraction computation based on measurements of fuel mass fraction and temperature (nFT). Using a diluent consisting of argon and oxygen with an overall volumetric dilution ratio of 3/1 (diluent/fuel) allow...
متن کاملDynamic Response of Strained Premixed Flames to Equivalence Ratio Gradients
Premixed flames encounter gradients of mixture equivalence ratio in stratified charge engines, lean premixed gas-turbine engines, and a variety of other applications. In cases for which the scales—spatial or temporal—of fuel concentration gradients in the reactants are comparable to flame scales, changes in burning rate, flammability limits, and flame structure have been observed. This paper us...
متن کاملLOCAL BASES WITH STRATIFIED STRUCTURE IN $I$-TOPOLOGICAL VECTOR SPACES
In this paper, the concept of {sl local base with stratifiedstructure} in $I$-topological vector spaces is introduced. Weprove that every $I$-topological vector space has a balanced localbase with stratified structure. Furthermore, a newcharacterization of $I$-topological vector spaces by means of thelocal base with stratified structure is given.
متن کاملForced Response: Turbulent Swirl Combustor
Since a large number of physical variables are involved in the combustion process occurring in complex swirl stabilized combustors, simple systems (burner stabilized laminar flat flames) were initially studied (see chapters 5 and 6). Having understood the dynamics of laminar flat flames and developed methodologies to build reduced order flame dynamic models, the technique developed to measure t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Combustion and Flame
سال: 2016
ISSN: 0010-2180
DOI: 10.1016/j.combustflame.2016.01.001