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LES of the interaction between a premixed flame and complex turbulent swirling flow

In this paper the Triple Annular Research Swirler, a fuel injector characterized by complex design with three concentric air passages, has been studied numerically. A swirl-stabilized lean premixed flame has been simulated by means of Large Eddy Simulation. The computations characterize successfully the dynamics of the flame and their interactions with the complex swirling flow. The flame is stabi

LES with acoustics and PSI for deforming plates in gas flow

This concerns Flow Induced Vibrations (Fly) in nuclear reactors and numerical analysis of such. Special attention is paid to structural excitation by sound generated remotely and turbulent flow around the structure. One hypothesis was that these phenomena can interact, so that the structure accumulates more energy from the flow if it also excited by sound from another source. In the studies, Fluid

Les péri-récepteurs chimiosensoriels des insectes / Chemosensory perireceptors of insects

Small globular proteins, highly abundant in the antennal sensillar lymph and in the mammalian nasal mucus, and capable of binding odorant molecules have been discovered. They have led to the concept that odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) may optimize the reception of hydrophobic stimuli molecules by enhancing their solubilization in the aqueous environment that bath

LES/TPDF investigation of the effects of ambient methanol concentration on pilot fuel ignition characteristics and reaction front structures

Large-eddy simulations with a transported probability density function model coupled with a finite-rate chemistry is applied to study the ignition process of an n-heptane spray in a constant volume chamber with a premixed methanol-air atmosphere under conditions relevant to reactivity controlled compression ignition (RCCI) engines. Three reacting spray cases with initial methanol-air equivalence r