LaVision GmbH其它光谱仪TR-PLIF的工作原理介绍
其它光谱仪TR-PLIF的使用方法?
LaVision GmbHTR-PLIF多少钱一台?
其它光谱仪TR-PLIF可以检测什么?
其它光谱仪TR-PLIF使用的注意事项?
LaVision GmbHTR-PLIF的说明书有吗?
LaVision GmbH其它光谱仪TR-PLIF的操作规程有吗?
LaVision GmbH其它光谱仪TR-PLIF报价含票含运吗?
LaVision GmbHTR-PLIF有现货吗?
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旋流燃烧器中旋进涡核(PVC)的形成和火焰诱导抑制:实验和线性稳定性分析
采用当前世界上唯一商品化的德国LaVision公司的时间分辨高速激光诱导荧光测试系统和时间分辨粒子成像测速系统,对旋流燃烧器中旋进涡核(PVC)的形成和火焰诱导抑制进行了实验和线性稳定性的研究分析。
能源/新能源
2017/07/20
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气体自由喷射的单次体视3维层析激光诱导荧光成像研究
Single-shot, tomographic imaging of the three-dimensional concentration field is demonstrated in a turbulent gaseous free jet in co-flow using volumetrically illuminated laser-induced fluorescence. The fourthharmonic output of an Nd:YAG laser at 266 nm is formed into a collimated 15 × 20 mm2 beam to excite the ground singlet state of acetone seeded into the central jet. Subsequent fluorescence is collected along eight lines of sight for tomographic reconstruction using a combination of stereoscopes optically coupled to four two-stage intensified CMOS cameras. The performance of the imaging system is evaluated and shown to be sufficient for recording instantaneous three-dimensional features with high signal-tonoise (130:1) and nominal spatial resolution of 0.6–1.5 mm at x/D = 7–15.5.
2803KB
2016/08/26
落到倾斜箔片上的液体薄膜流动的时间空间分辨热传导过程的实验研究
This paper describes the development of an experimental technique that combines simultaneous planar laser-induced fluorescence (PLIF) and infrared (IR) thermography imaging, and its application to the measurement of unsteady and conjugate heat-transfer in harmonically forced, thin liquid-film flows falling under the action of gravity over an inclined electrically heated-foil substrate. Quantitative, spatiotemporally resolved and simultaneously conducted measurements are reported of the film thickness, film free-surface temperature, solid–liquid substrate interface temperature, and local/instantaneous heat flux exchanged with the heated substrate. Based on this information, local and instantaneous heat-transfer coefficients (HTCs) are recovered. Results concerning the local and instantaneous HTC and how this is correlated with the local and instantaneous film thickness suggest considerable heat-transfer enhancement relative to steady-flow predictions in the thinner film regions.
2829KB
2016/08/26
湍流预混钝体火焰引燃几率的模拟和实验研究
The ignition characteristics of a premixed bluff-body burner under lean conditions were investigated experimentally and numerically with a physical model focusing on ignition probability. Visualisation of the flame with a 5 kHz OH* chemiluminescence camera confirmed that successful ignitions were those associated with the movement of the kernel upstream, consistent with previous work on non-premixed systems. Performing many separate ignition trials at the same spark position and flow conditions resulted in a quantification of the ignition probability Pign, which was found to decrease with increasing distance downstream of the bluff body and a decrease in equivalence ratio. Flows corresponding to flames close to the blow-off limit could not be ignited, although such flames were stable if reached from a richer already ignited condition.
1273KB
2016/08/26
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