Two-Beam Femtosecond Rotational CARS for One-Dimensional Thermometry in a Turbulent, Sooting Jet Flame

机译：两束飞秒飞秒旋转汽车，用于在湍流，烟尘喷射火焰中进行一维测温

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Single-laser-shot femtosecond rotational coherent anti-Stokes Raman scattering (fs-RCARS) temperature measurements are performed across a 6-mm line in a turbulent, sooting ethylene jet flame to characterize temperature gradients. A 60-fs pulse is used to excite many rotational Raman transitions in N_2, and a 160-ps pulse is used to probe the Raman coherence. The spatial resolution of the measurements is 500 μm in the direction of beam propagation and 50 μm in the transverse directions. Measurements have been performed at multiple locations in the jet flame, and the measured temperature are similar to previously recorded point measurements. Future work will include performing simultaneous laser-induced incandescence (LH) measurements to measure soot volume fraction to perform joint statistical analysis of the sooting turbulent flame.

机译：飞秒单飞秒飞秒旋转相干反斯托克斯拉曼散射（fs-RCARS）温度测量是在一条6毫米的湍流中进行的，用烟so的乙烯喷射火焰表征温度梯度。 60 fs脉冲用于激发N_2中的许多旋转拉曼跃迁，而160 ps脉冲用于探测拉曼相干性。测量的空间分辨率在光束传播方向上为500μm，在横向方向上为50μm。已经在喷射火焰中的多个位置进行了测量，并且测量的温度类似于先前记录的点测量。未来的工作将包括同时进行激光诱导白炽度（LH）测量，以测量烟灰体积分数，并对烟灰湍流火焰进行联合统计分析。

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《Frontiers in ultrafast optics: biomedical, scientific, and industrial applications XVII》|2017年|100941E.1-100941E.5|共5页
会议地点 San Francisco(US)
作者
Daniel R. Richardson; Sukesh Roy; James R. Gord; Sean P. Kearney;
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作者单位

Spectral Energies, LLC, 5100 Springfield St., Dayton, OH 45431;

Spectral Energies, LLC, 5100 Springfield St., Dayton, OH 45431;

Air Force Research Laboratory, Wright Patterson Air Force Base, OH 45433;

Engineering Sciences Center, Sandia National Laboratories, Albuquerque, NM 87185;

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正文语种 eng
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Ultrafast spectroscopy; combustion thermometry; coherent anti-Stokes Raman scattering;

机译：超快光谱；燃烧测温相干反斯托克斯拉曼散射;

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专利

1. One-dimensional single-shot thermometry in flames using femtosecond-CARS line imaging [J] . W. D. Kulatilaka, H. U. Stauffer, J. R. Gord, Optics Letters . 2011,第21期

机译：飞秒CARS线成像在火焰中进行一维单次测温
2. Five kHz thermometry in turbulent spray flames using chirped-probe pulse femtosecond CARS, part I: Processing and interference analysis [J] . Thomas Levi M., Lowe Albyn, Satija Aman, Combustion and Flame . 2019,第FEBa期

机译：使用chi脉冲飞秒飞秒汽车在湍流喷雾火焰中进行五kHz测温，第一部分：处理和干扰分析
3. Five kHz thermometry in turbulent spray flames using chirped-probe-pulse femtosecond CARS, part Ⅱ: Structure of reaction zones [J] . Lowe Albyn, Thomas Levi M., Satija Aman, Combustion and Flame . 2019,第FEBa期

机译：chi脉冲飞秒飞秒汽车在湍流喷雾火焰中的5 kHz测温，第二部分：反应区结构
4. Two-Beam Femtosecond Rotational CARS for One-Dimensional Thermometry in a Turbulent, Sooting Jet Flame [C] . Daniel Richardson, Sukesh Roy, James Gord, AIAA Aerospace Sciences Meeting;AIAA SciTech Forum . 2017

机译：两束飞秒飞秒旋转汽车，用于一维测温的湍流烟尘喷射火焰
5. A One-Dimensional Turbulence (ODT) study of soot formation, transport, and radiation interactions in meter-scale buoyant turbulent flames. [D] . Ricks, Allen Joseph. 2007

机译：一米湍流（ODT）研究米级浮力湍流火焰中烟灰的形成，传输和辐射相互作用。
6. Chirped-probe-pulse femtosecond CARS thermometry in turbulent spray flames [O] . A. Lowe, L.M. Thomas, A. Satija, 2019

机译：湍流喷雾火焰中的啁啾探针脉冲飞秒轿车温度

Two-Beam Femtosecond Rotational CARS for One-Dimensional Thermometry in a Turbulent, Sooting Jet Flame

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