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The present study discusses a test case for the application of digital Particle Image Velocimetry
(PIV) and planar Laser Induced Fluorescence (LIF) as a combined technique.
In this measurement, a water filled Rayleigh-Bénard cell with a fluorescent dye (Rhodamine B) for LIF and
tracer particles for PIV was used. Rhodamine B fluorescence is sensitive to the temperature of the fluid.
Lensing effects, due to local variations in the refractive index of the fluid, were solved by means of a spectral
filter applied to the LIF images. Two cameras, with appropriate optical filters to separate PIV and LIF
signals, were used to simultaneously grab images of the scattering particles and of the dye fluorescence.
After separate processing for the velocity and for the temperature calculation, these fields are recombined to
evaluate the turbulent heat flux.
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北京欧兰科技发展有限公司为您提供《流体中速度场,浓度场检测方案(粒子图像测速)》，该方案主要用于其他中速度场,浓度场检测，参考标准《暂无》，《流体中速度场,浓度场检测方案(粒子图像测速)》用到的仪器有德国LaVision PIV/PLIF粒子成像测速场仪、Imager sCMOS PIV相机、PLIF平面激光诱导荧光火焰燃烧检测系统。
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