A Numerical Study on Premixed Bluff Body Flame of Different Bluff Apex Angle
نویسندگان
چکیده
منابع مشابه
Error analysis of large-eddy simulation of the turbulent non-premixed sydney bluff-body flame
A computational error analysis is applied to the large-eddy simulation of the turbulent non-premixed Sydney bluff-body flame, where the error is defined with respect to experimental data. The errorlandscape approach is extended to heterogeneous compressible turbulence, which is coupled to combustion as described by a flamelet model. The Smagorinsky model formulation is used to model the unknown...
متن کاملNear-Blowoff Dynamics of a Bluff-Body Stabilized Flame
This paper describes an experimental investigation of the dynamics of a near-blowoff, bluff-body stabilized flame. This work is motivated by a number of prior observations showing that near-blowoff flames exhibit enhanced unsteadiness. Laser sheet imaging studies and particle image velocimetry velocity field measurements show that the transient dynamics of these flames occur in two distinct sta...
متن کاملLarge-eddy simulation of a bluff-body-stabilized non-premixed flame using a recursive filter-refinement procedure
A large-eddy simulation (LES) of a bluff-body-stabilized flame has been carried out using a new strategy for LES grid generation. The recursive filter-refinement procedure (RFRP) has been used to generate optimized clustering for variable density combustion simulations. A methane–hydrogen fuel-based bluff-body-stabilized experimental configuration has been simulated using state-of-the-art LES a...
متن کاملA Numerical Study of Bluff Ring Wake Stability
A numerical study of the wake dynamics and stability of the flow around bluff rings placed normal to the flow direction at low Reynolds number is presented. An attractive feature of this bluff body geometry is that it effectively behaves locally like a circular cylinder at high aspect ratio while, as the aspect ratio is reduced to zero, the body is transformed to a sphere. Thus, it covers a ric...
متن کاملLinear feedback control of bluff body wakes
In this project, linear feedback control is used to modify the dynamics of fluid flows. We focus on two system identification and controller design strategies that target separated wakes behind bluff bodies. In particular, we aim to reduce the form drag and suppress the large fluctuations that typically develop in such wakes and are detrimental to efficiency and safety in a large number of indu...
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: Mathematical Problems in Engineering
سال: 2013
ISSN: 1024-123X,1563-5147
DOI: 10.1155/2013/272567