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Showing 1 to 8 of 8 for “"preferential diffusion"”.
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The Influence of Preferential Diffusion On the Blow-Off of Laminar Aerated Burner Flames
… Reed. A literature review has indicated that the preferential diffusion of Hydrogen towards the point of stability in the region of maximum primary flame front curvature at the base of the flame may cause this anomaly. The influence of the introduction of Hydrogen into the Propane-Air system on …
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Bildgebende Multiparameter-Lasermessungen in komplexen technischen Strömungs- und Verbrennungsprozessen
… deals with the basic structure of hydrocarbon diffusion flames. Stationary curved diffusion flames are established using a modified counterflow burner and investigated by laser diagnostics. Methane, propane and n-butane are used. The structure of the reaction zone is visualized by means of …
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DNS of inhomogeneous reactants premixed combustion
… the premixed flame. The dip is attributed to the preferential diffusion of carbon- and hydrogen- containing species. Hysteresis of S_d is observed in the unsteady and unstrained laminar flames that propagate into normally stratified reactants. Stoichiometric flames propagating into lean mixture …
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Novel analytical method for investigating compositional driven ion-induced nanopatterning of multicomponent materials
… during ion irradiation, via mechanisms including preferential sputtering, segregation, and preferential diffusion. This motivates the investigation of the surface composition evolution during ion irradiation – particularly at fluences just before ion-induced nanopatterning begins – in order to …
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Nonequilibrium phase Behaviour and Mass Transfer of Alkane Solvents(s)-CO2-Heavy Oil Systems Under Reservoir Conditions
… and validated to accurately quantify the preferential diffusion of each component in alkane solvent(s)- assisted recovery processes with consideration of natural convection induced by the heated and diluted heavy oil. The Peng-Robinson equation of state, heat transfer equation, and …
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Development of a multi-scale projection method with immersed boundaries for chemically reactive flows and its application to examine flame stabilization and blow-off mechanisms
… wake, the location where the flame is initiated, preferential diffusion and conjugate heat exchange furnish conditions for ignition and enable streamwise flame continuation. In the perforated-plate, on the other hand, a combination of conjugate heat exchange and flame curvature is responsible for …
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Swift heavy-ion irradiation of amorphous silicon dioxide, silicon nitride and silicon oxynitrides composite systems: from ion tracks to nanoparticle shaping
… at the interface between a-SiO2 and a-Si3N4, preferential elongation towards the a-SiO2 layer was observed with a limited elongation towards the a-Si3N4 layer. Numerical simulations based on the three-dimensional thermal spike (3D-TS) model showed, in the single layer case, a thermal spike …
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Swift heavy-ion irradiation of amorphous silicon dioxide, silicon nitride and silicon oxynitrides composite systems: from ion tracks to nanoparticle shaping
… at the interface between a-SiO2 and a-Si3N4, preferential elongation towards the a-SiO2 layer was observed with a limited elongation towards the a-Si3N4 layer. Numerical simulations based on the three-dimensional thermal spike (3D-TS) model showed, in the single layer case, a thermal spike …