منابع مشابه
Chemical Kinetic Modeling of a Methane Opposed Flow Diffusion Flame and - Comparison to Experiments
The chemical structure of an opposed flow, methane diffusion flame is studied using a chemical kinetic model and the results are compared to experimental measurements. The chemical kinetic paths leading to aromatics and polycyclic aromatics hydrocarbons (PAHs) in the diffusion flame are identified. These paths all involve resonantly stabilized radicals which include propargyl, allyl, cyclopenta...
متن کاملMicrogravity opposed-flow flame spread in polyvinyl chloride tubes
The effects of gravity on opposed-flow flame spread in a confined geometry were investigated experimentally in the 2.2-s drop tower at the NASA Glenn Research Center. Pure oxygen flowed through samples of 0.64-cminner-diameter polyvinyl chloride (PVC) tubing held either horizontally or vertically in a combustion chamber filled with nitrogen. The sample was ignited in normal gravity with a hot w...
متن کاملEffect of Gap Height on Thin Fuel Opposed Flow Flame Spread in the Narrow Channel Apparatus
The Narrow Channel Apparatus (NCA) is designed to establish a fully developed laminar flow profile above and below a thin, flat, solid fuel or on one side of a thick fuel for flame spread investigations. Due in part to its ability to suppress buoyantly-induced flow, the NCA is under investigation as a possible test method for screening materials for space flight applications. This study focused...
متن کاملEffects of boundary layer displacement and separation on opposed-flow flame spread
An analysis is presented of the viscous-inviscid interaction region around the tip of a flame spreading over the surface of a solid fuel in a forced laminar high Reynolds number air stream that opposes the flame propagation. Through the interaction. the vaporization of the solid and the thermal expansion of the gas originate an adverse pressure gradient upstream of the flame tip. which leads to...
متن کاملFluid Extensions for Optical Flow and Diffusion-Based Image Registration
The present paper derives two new equations for the nonlinear registration of images based on Euler-Lagrange equations. It offers a systematic way to construct fluid extensions to registration equations based on variational principles.
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ژورنال
عنوان ژورنال: Symposium (International) on Combustion
سال: 1981
ISSN: 0082-0784
DOI: 10.1016/s0082-0784(81)80191-9