Recent Studies on Turbulent Diffusion Flames
نویسندگان
چکیده
منابع مشابه
Studies on Soot Formation and Combustion in Turbulent Spray Flames: Modeling and Experimental Measurement
The present study is concerned with measuring and simulating soot formation and combustion in turbulent liquid fuel spray flames. Soot concentrations inside the combustor are measured by filter paper technique. The simulation is based on the solution of the fully-coupled conservation equations for turbulent flow, chemical species kinetic modeling, fuel droplet evaporation and combustion and...
متن کاملDNS of auto–ignition in turbulent diffusion H2/air flames
Direct numerical simulation (DNS) is used to study auto–ignition of turbulent diffusion flames. A novel, all–Mach number algorithm developed by Doom et al is used. The chemical mechanism is a nine species, nineteen reaction mechanism for H2 and Air from Mueller at el. 2 Simulations of three dimensional turbulent diffusion flames are performed. Isotropic turbulence is superimposed on an unstrain...
متن کاملUnsteady Flamelet Modeling of Turbulent Hydrogen-air Diffusion Flames
The unsteady flamelet model is applied in numerical simulations of a steady, turbulent, nitrogen-diluted hydrogen-air diffusion flame. An unsteady flamelet is solved interactively with a CFD solver for the turbulent flow and the mixture fraction field. Transient effects occurring in steady jet diffusion flames are discussed in terms of the relevant timescales. It is shown that radiation can be ...
متن کاملModeling soot formation in turbulent kerosene/air jet diffusion flames
Soot volume fraction and number density in a turbulent diffusion flame burning kerosene/air were predicted using two approaches. The first used a conventional soot inception model based on the acetylene concentration and is referred to as the acetylene model. The second used a soot inception model based on the formation rate of three and two ring aromatics [1] and is referred to as the PAH ince...
متن کاملBuoyancy Effects in Strongly-pulsed, Turbulent Diffusion Flames
The objective of this experiment is to better understand the combustion behavior of pulsed, turbulent diffusion flames by conducting experiments in microgravity. The fuel jet is fully-modulated (i.e., completely shut off between pulses) by an externally controlled valve system leading to enhanced fuel/air mixing compared to acoustically excited or partiallymodulated jets[1]. Experiments are con...
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ژورنال
عنوان ژورنال: Journal of the Fuel Society of Japan
سال: 1968
ISSN: 0369-3775,2185-226X
DOI: 10.3775/jie.47.10_735