Flame-Vortex Interaction in Laminar Gaseous and Spray Diffusion Flames

层流气体和喷雾扩散火焰中的火焰涡相互作用

基本信息

  • 批准号:
    9904296
  • 负责人:
  • 金额:
    $ 39.81万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    1999
  • 资助国家:
    美国
  • 起止时间:
    1999-10-01 至 2003-09-30
  • 项目状态:
    已结题

项目摘要

ABSTRACTALESSANDRO GOMEZCTS-9904296This is an experimental and computational investigation of the interaction of laminar counterflow gaseous and spray diffusion flames with laminar vortices. Several laser diagnostic techniques are applied, including two-component phase Doppler interferometriy to measure gas and droplet velocities and the droplet size distribution; Stokes/antiStokes Raman scattering to obtain gas-phase temperature; line Raman scattering to measure the concentrations of major species and to determine the mixture fractions; and planar laser-induced fluorescence of formaldehyde (CH2O), hydroxyl (OH), and methyne (CH) to monitor flame response to the vortex-induced perturbation. When feasible, these techniques are phase-locked to the arrival of the vortex. Computationally, the gas phase is modeled using an Eulerian formulation and the droplet phase is modeled using a Lagrangian formulation; the model includes detailed transport and chemical kinetics and size distribution effects. The emphasis is on methanol and heptane flames with the fuel supplied either as a spray or in vapor form. The approach is intended to provide an understanding of the flame-vortex interaction, including the effects of time dependence and curvature on flame structure , extinction and re-ignition behavior, and pollutant formation.
摘要:本文对层流逆流气体和喷雾扩散火焰与层流涡的相互作用进行了实验和计算研究。应用了几种激光诊断技术,包括测量气体和液滴速度和液滴尺寸分布的双分量相位多普勒干涉法;Stokes/反Stokes拉曼散射获得气相温度;用拉曼散射线测量主要物质的浓度,测定混合组分;以及平面激光诱导的甲醛(CH2O)、羟基(OH)和甲烷(CH)的荧光监测火焰对涡致扰动的响应。在可行的情况下,这些技术会锁定到涡旋的到来。计算上,气相用欧拉公式建模,液滴用拉格朗日公式建模;该模型包括详细的输运和化学动力学以及粒径分布效应。重点是甲醇和庚烷火焰,燃料以喷雾或蒸汽形式提供。该方法旨在提供对火焰-涡相互作用的理解,包括时间依赖性和曲率对火焰结构、熄灭和重新点燃行为以及污染物形成的影响。

项目成果

期刊论文数量(0)
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会议论文数量(0)
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Alessandro Gomez其他文献

Structure of laminar coflow spray flames at different pressures
  • DOI:
    10.1016/s1540-7489(02)80077-3
  • 发表时间:
    2002-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    Stefano Russo;Alessandro Gomez
  • 通讯作者:
    Alessandro Gomez
An easy but quantitative assessment of soot production rate and its dependence on temperature and pressure
  • DOI:
    10.1016/j.proci.2024.105292
  • 发表时间:
    2024-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    Kevin Gleason;Francesco Carbone;Alessandro Gomez
  • 通讯作者:
    Alessandro Gomez
Extinction behavior of a partially premixed flame and a nonpremixed flame in turbulent counterflow
部分预混火焰和非预混火焰在湍流逆流中的熄灭行为
  • DOI:
    10.1016/j.combustflame.2025.114268
  • 发表时间:
    2025-09-01
  • 期刊:
  • 影响因子:
    6.200
  • 作者:
    Fernando M. Pereira;Francesco Carbone;Jonathan H. Frank;Bruno Coriton;Philip Wang;Alessandro Gomez
  • 通讯作者:
    Alessandro Gomez
Experiments on standing and traveling edge flames around flame holes
  • DOI:
    10.1016/j.proci.2004.08.230
  • 发表时间:
    2005-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    Giuliano Amantini;Jonathan H. Frank;Alessandro Gomez
  • 通讯作者:
    Alessandro Gomez
Accurate treatment of size distribution effects in polydisperse spray diffusion flames: multi-fluid modelling, computations and experiments
多分散喷雾扩散火焰中尺寸分布效应的精确处理:多流体建模、计算和实验
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    F. Laurent;V. Santoro;M. Noskov;M. Smooke;Alessandro Gomez;M. Massot
  • 通讯作者:
    M. Massot

Alessandro Gomez的其他文献

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{{ truncateString('Alessandro Gomez', 18)}}的其他基金

Soot inception in highly controlled counterflow flames at pressures up to 4MPa
在压力高达 4MPa 的高度受控逆流火焰中产生烟灰
  • 批准号:
    1853150
  • 财政年份:
    2019
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Continuing Grant
Experiments on Turbulence-Chemistry Interaction in Highly Turbulent Counterflow Flames
高湍流逆流火焰中的湍流-化学相互作用实验
  • 批准号:
    1403433
  • 财政年份:
    2014
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Standard Grant
Electrospray Materials Synthesis for Solar Energy Harvesting and Energy Storage
用于太阳能收集和储能的电喷雾材料合成
  • 批准号:
    1335383
  • 财政年份:
    2013
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Standard Grant
Structure of Incipiently Sooting Counterflow Diffusion Flames at High Pressure
高压下初期烟灰逆流扩散火焰的结构
  • 批准号:
    1233318
  • 财政年份:
    2012
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Continuing Grant
Collaborative Research: Experimental and Computational Studies of Turbulence-Chemistry Interactions in Counter-Flow Flames as a Laboratory-Scale Benchmark for Practical Systems
合作研究:逆流火焰中湍流化学相互作用的实验和计算研究作为实际系统的实验室规模基准
  • 批准号:
    1033204
  • 财政年份:
    2010
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Standard Grant
Integrated Production and Surface Modification of Biodegradable Nanoparticles by MEMS-Electrosprays for Drug Delivery
用于药物输送的 MEMS 电喷雾集成生产和表面修饰生物可降解纳米颗粒
  • 批准号:
    0907368
  • 财政年份:
    2009
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Standard Grant
Experimental Study of Soot Nanoparticle Formation and Oxidation at Elevated Pressures
高压下烟灰纳米粒子形成和氧化的实验研究
  • 批准号:
    0651906
  • 财政年份:
    2007
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Standard Grant
ENGINEERING RESEARCH EQUIPMENT: Imaging Systems for the Study of Burning Sprays
工程研究设备:用于研究燃烧喷雾的成像系统
  • 批准号:
    9411684
  • 财政年份:
    1994
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Standard Grant
NSF Young Investigator Award
NSF青年研究员奖
  • 批准号:
    9257951
  • 财政年份:
    1992
  • 资助金额:
    $ 39.81万
  • 项目类别:
    Continuing Grant

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半稀尘流中粒子-涡相互作用的理论与数值研究
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