Simulation of atomization and ignition of high-pressure jet stream

IF 0.2 Q4 PHYSICS, MULTIDISCIPLINARY
S. Bolegenova
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引用次数: 0

Abstract

This work is a significant study in terms of modern combustion physics of the problem of computer modeling of atomization, ignition, and combustion of high-pressure reactive liquid fuels under high turbulence. The need for a detailed study of the physical and chemical processes occurring during the combustion of reactive fuels is determined by the increased requirements for the efficiency of various technical devices, the accuracy of ignition prediction, and the combustion rate conditioned by the current environmental requirements for environmental protection. The processes of atomization, ignition, and combustion of atomized jet fuel (heptane) at high pressures were investigated using a numerical model. Numerical simulation methods were used to get profiles of the temperature plume, distribution of concentrations of the oxidizer, and reaction products (carbon dioxide and soot) in the combustion space. The optimum value of the initial pressure for heptane has been determined. The practical significance of the computational experiments presented in this paper is that the results obtained can be used in designing various reactive technical devices using combustion, which would simultaneously solve the problem of optimizing the process, increasing fuel combustion efficiency, and minimizing emissions of harmful substances.
高压喷射气流雾化与点火模拟
这项工作是现代燃烧物理学中对高压反应性液体燃料在高湍流条件下雾化、点火和燃烧的计算机模拟问题的重要研究。对反应性燃料燃烧过程中发生的物理和化学过程进行详细研究的需要,是由对各种技术装置的效率、点火预测的准确性和当前环境保护要求所制约的燃烧速度的要求不断提高所决定的。采用数值模型研究了喷气燃料(庚烷)在高压下的雾化、点火和燃烧过程。采用数值模拟方法得到了燃烧空间内温度羽流、氧化剂浓度分布和反应产物(二氧化碳和烟尘)的分布。确定了庚烷的最佳初始压力值。本文计算实验的实际意义在于,所得结果可用于设计各种燃烧反应工艺装置,同时解决优化工艺、提高燃料燃烧效率和减少有害物质排放的问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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