Results 11 to 20 of about 3,616,071 (302)
A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems
EnergiesThis work presents a state-of-the-art review of micro-combustion flame dynamics and micro propulsion systems. In the initial section, we focus in on the different challenges of micro-combustion, investigating the typical length and time scales involved ...
David M. Dias +2 more
doaj +2 more sources
Coupled interaction between acoustics and unsteady flame dynamics during the transition to thermoacoustic instability in a multi-element rocket combustor [PDF]
Combustion and Flame, 2021 Rocket engine combustors are prone to transverse instabilities that are characterized by large amplitude high frequency oscillations in the acoustic pressure and the heat release rate.
Praveen Kasthuri +4 more
semanticscholar +1 more source
International Journal of Spray and Combustion Dynamics, 2023 The present work compares the respective advantages and disadvantages of compressible and incompressible computational fluid dynamics (CFD) formulations when used for the estimation of the acoustic flame response.
Alexander J. Eder +4 more
semanticscholar +1 more source
The Physics of Fluids, 2022 The present study combines Large Eddy Simulation (LES) with System Identification (SI) to determine the Flame Transfer Functions (FTF) of technically premixed flames, which respond to fluctuations of upstream velocity as well as equivalence ratio.
J. Kuhlmann +4 more
semanticscholar +1 more source
Combustion and Flame, 2021 Large Eddy Simulation (LES) is a fundamental research tool to study gas turbines and aero-engine combustors. In LES, although rarely addressed systematically, it is known that thermal boundary conditions control the heat transfer between the flow and the ...
P. Agostinelli +4 more
semanticscholar +1 more source
Role of buoyant flame dynamics in wildfire spread. [PDF]
Proc Natl Acad Sci U S A, 2015 Finney MA +9 more
europepmc +2 more sources
Flame dynamics during intermittency and secondary bifurcation to longitudinal thermoacoustic instability in a swirl-stabilized annular combustor [PDF]
, 2020 In this experimental study on a laboratory-scale turbulent annular combustor with sixteen swirl-stabilized burners, we study the flame-flame and flame-acoustic interactions during different dynamical states associated with the longitudinal mode of the ...
Amitesh Roy +4 more
semanticscholar +1 more source
Combustion Characteristics of Premixed Hydrogen/Air in an Undulate Microchannel
Energies, 2022 This work reports a numerical investigation of microcombustion in an undulate microchannel, using premixed hydrogen and air to understand the effect of the burner design on the flame in order to obtain stability of the flame.
Pedro R. Resende +3 more
doaj +1 more source
An Experimental Investigation on Flame Pulsation for a Swirl Non-Premixed Combustion
Energies, 2018 Flame pulsation has a significant effect on combustion, and understanding its oscillatory behavior is important to the combustion community. An experiment was performed to analyze the pulsation characteristics of a swirl non-premixed flame under various ...
Zhongya Xi +4 more
doaj +1 more source
Progress in Energy and Combustion Science, 2019 Abstract Cool flames play a critical role in ignition timing, burning rate, burning limits, engine knocking, and emissions in conventional and advanced combustion engines. This paper provides an overview of the recent progress in experimental and computational studies of cool flames.
Yiguang Ju +4 more
openaire +2 more sources