100 kHz thousand-frame burst-mode planar imaging in turbulent flames

James B. Michael; Prabhakar Venkateswaran; Joseph D. Miller; Mikhail N. Slipchenko; James R. Gord; Sukesh Roy; Terrence R. Meyer

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100 kHz thousand-frame burst-mode planar imaging in turbulent flames

机译：湍流火焰中的100 kHz千帧突发模式平面成像

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High-repetition-rate, burst-mode lasers can achieve higher energies per pulse compared with continuously pulsed systems, but the relatively few number of laser pulses in each burst has limited the temporal dynamic range of measurements in unsteady flames. A fivefold increase in the range of timescales that can be resolved by burst-mode laser-based imaging systems is reported in this work by extending a hybrid diode- and flashlamp-pumped Nd:YAG-based amplifier system to nearly 1000 pulses at 100 kHz during a 10 ms burst. This enables an unprecedented burst-mode temporal dynamic range to capture turbulent fluctuations from 0.1 to 50 kHz in flames of practical interest. High pulse intensity enables efficient conversion to the ultraviolet for planar laser-induced fluorescence imaging of nascent formaldehyde and other potential flame radicals.

机译：与连续脉冲系统相比，高重复频率的突发模式激光器可以使每个脉冲获得更高的能量，但是每个突发中相对较少的激光脉冲数量限制了不稳定火焰中测量的时间动态范围。通过将基于二极管和闪光灯的泵浦的基于Nd：YAG的混合放大器系统扩展到100 kHz的近1000个脉冲，这项工作报告了可以通过基于突发模式的激光成像系统解决的时标范围增加了五倍在10 ms突发期间。这使空前的突发模式时间动态范围能够捕获实际感兴趣的火焰中从0.1到50 kHz的湍流波动。高脉冲强度可以有效地转换为紫外线，从而对新生甲醛和其他潜在的火焰自由基进行平面激光诱导的荧光成像。

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《Optics Letters》 |2014年第4期|共4页
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James B. Michael; Prabhakar Venkateswaran; Joseph D. Miller; Mikhail N. Slipchenko; James R. Gord; Sukesh Roy; Terrence R. Meyer;
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1. 100 kHz thousand-frame burst-mode planar imaging in turbulent flames [J] . James B. Michael, Prabhakar Venkateswaran, Joseph D. Miller, Optics Letters . 2014,第4期

机译：湍流火焰中的100 kHz千帧突发模式平面成像
2. Spatiotemporal analysis of turbulent jets enabled by 100-kHz, 100-ms burst-mode particle image velocimetry [J] . Miller Joseph D., Jiang Naibo, Slipchenko Mikhail N., Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow . 2016,第12期

机译：通过100 kHz，100 ms突发模式粒子图像测速技术实现的湍流时空分析
3. Spatiotemporal analysis of turbulent jets enabled by 100-kHz, 100-ms burst-mode particle image velocimetry [J] . Miller Joseph D., Jiang Naibo, Slipchenko Mikhail N., Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow . 2016,第12期

机译：通过100 kHz，100 ms突发模式粒子图像测速技术实现的湍流时空分析
4. A new architecture for burst-mode planar imaging of turbulent flames [C] . James B. Michael, Joseph D. Miller, Terrence R. Meyer, AIAA aerospace sciences meeting including the new horizons forum and aerospace exposition . 2013

机译：湍流火焰突发模式平面成像的新架构
5. Flame front structures studies of highly turbulent reacting flow over a backward facing step using KHz OH-CH planar laser induced fluorescence. [D] . Acosta-Zamora, Arturo. 2016

机译：使用KHz OH-CH平面激光诱导的荧光，研究面向后步骤的高度湍流反应流的火焰前沿结构。
6. Direct Numerical Simulation of Head-On Quenching of Statistically Planar Turbulent Premixed Methane-Air Flames Using a Detailed Chemical Mechanism [O] . Jiawei Lai, Markus Klein, Nilanjan Chakraborty -1

机译：利用详细化学机理对统计平面湍流甲烷-空气预混合火焰进行正面淬火的直接数值模拟
7. 100 kHz thousand-frame burst-mode planar imaging in turbulent flames [O] . Michael James B., Venkateswaran Prabhakar, Miller Joseph D., 2014

机译：湍流火焰中的100 kHz千帧突发模式平面成像
8. Ultrahigh-frame-rate OH Fluorescence Imaging in Turbulent Flames using a Burst-Mode Optical Parametric Oscillator [R] . Miller, J. D., Slipchenko, M., Meyer, T. R., 2009

机译：使用突发模式光学参量振荡器在湍流火焰中进行超高帧率OH荧光成像

100 kHz thousand-frame burst-mode planar imaging in turbulent flames

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