[PDF] Top 20 On the structure of laminar diffusion flames
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On the structure of laminar diffusion flames
... Thesis by I n P a r t i a l R l l f i l l r n e n t o f t h e Requirements F o r t h e Degree of' Aeronautical Engineer C a l i f o r n i a Institute o f Technology Pasadena, C a l i f o r n i a 1 9 6[.] ... See full document
66
Soot Formation in Laminar Jet Diffusion Flames at Elevated Pressures
... in diffusion flames and recorded flame heights at smoke points for ethylene and ethane flames from ...by diffusion rates and the rate of mixing of the fuel and ...investigated laminar ... See full document
150
Diffusive thermal instabilities of C4H10-C3H8/air laminar premixed flames
... It is well known, that subsonic, premixed and non-premixed, flames encounter diffusive thermal instabilities due to preferential diffusion of mass and heat [6-9]. These instabilities, which occur at low ... See full document
8
Structure of Methane Inverse Diffusion Flames with Pre-heated Co-flowing Simulated Combustion Products
... outer diffusion flame is ...inner diffusion flame, flame ...two flames are merging together as a ‘water drop’ shape of flame, and the cooling of central air eliminates the hot spot on the ...the ... See full document
124
Experimental Investigations of Fluid-Chemistry Interactions
... combustion structure of the inner zone burns in a diffusion mode and is somewhat thinner than the outer diffusion flame, suggesting that the inner zone experiences relatively high strain rates ... See full document
289
Experimental Investigations on Ethylene Laminar Flames at Elevated Pressures.
... binary diffusion coef- ficient of helium is the largest among the four diluents tested, the helium added to the fuel stream diffuses away rapidly (due to its higher mobility) as the mixture exits the fuel stream ... See full document
170
Numerical investigation of forced ignition in laminar counterflow non premixed methane air flames
... a diffusion flame, as is seen in the case of spark B. The flame structure involving rich and lean fronts and an inner diffusion flame may be described as tribrachial (Buckmaster, ...steady ... See full document
25
Numerical Investigation of an Impinging Diffusion Flames Effects of Fuel Variability
... and diffusion flames of hydrogen and mixtures of hydrogen and carbon dioxide ...for laminar/air flame impinging on a flat surface of this off stagnation peak using a commercial CFD code ... See full document
8
Online Full Text
... Buoyant laminar jet diffusion flames are known to oscillate at low frequencies, typically within the 10–20 Hz range, depending upon the operating conditions [1, 2, 4, ...jet diffusion ... See full document
6
Turbulent burning rates of gasoline components, Part 2-Effect of carbon number
... determined laminar and turbulent burn rates for a set of straight chain hydrocarbons of varied carbon number, n-pentane, n-hexane, n-heptane and ...their laminar burning velocity have been performed by a ... See full document
32
Towards a priori Models for Differential Diffusion in Turbulent Non Premixed Flames
... in laminar and turbulent flames is systematically assessed for a wide range of configurations of practical ...a laminar ethylene/air coflow diffusion ...a laminar and a turbulent ... See full document
209
Application of continuous-wave cavity ring-down spectroscopy to laminar flames
... of laminar flames also improves the overall sensitivity of cw-CRD as the average of a number of ring-down measurements can be ...turbulent flames would cause a greater and more random disturbance to ... See full document
11
Structure and Stability of Buoyant Diffusion Flames
... Neutral stability and amplification contours for symmetric buoyant diffusion flame using Boussinesq approximation.. Wave number-Reynolds number diagram with global nondimensionalisation.[r] ... See full document
167
Measurement of Smoke Point in Laminar Jet Diffusion Flames at Atmospheric and Elevated Pressures
... (Fickian diffusion). In a diffusion flame the fuel undergoes pyrolysis without the presence of an oxidizer in the mixture, whereas in premixed flames the fuel is heated with the oxidizer ...premixed ... See full document
62
Experimental Study of Soot Volume Fraction Applied in Laminar Diffusion Flames
... in laminar diffusion flames using a burner of configuration proposed by Burke-Schumann [12], in which two concentric tubes are used, the internal one with ... See full document
5
In-situ photoacoustic measurement of soot profiles in laminar flames using a high repetition-rate pulsed fibre laser
... We have previously demonstrated photoacoustic meas- urement of soot in flames [8]. Advantages of this approach include the simplicity of the signal collection and the ease of alignment. A pressure wave is ... See full document
6
Diffusion in General Physics and the Theory of the Convective Diffusion
... Then, let us introduce the statistical weight of i component and will sum up interactions of all pairs of components. As a result, we will obtain (7). According to (7), Onsager’s model diffusion in the ... See full document
5
The stability of laminar explosion flames
... An interesting aspect of flame instability is the practice of extrapolating a stable flame speed, or burning velocity, to zero stretch rate, using the observed stable relationship with stretch rate, to obtain a stretch ... See full document
16
Research on the impact of mass fractions of multi-element granular structure on the mixing process
... typology structure (classification with respect of similarity), data simplifying and its redu- ction, as well as with the search for hidden data (Brzeziñski, 1987; Marek, 1989; Noworol, 1989; Richling, ... See full document
8
Influence of the crystalline structure of cellulose on the production of ethanol from lignocellulose biomass
... With the use of scanning electron microscopy (SEM) and X-ray (XRD), Ang et al. (2012) analyzed structures of rice husks prior to and after pretreatment with the use of 1-ethyl-3-methylimidazolium acetate, ... See full document
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