A calibration scheme for quantitative concentration measurements using simultaneous PIV and PLIF

Sarathi, Partha; Gurka, Roi; Kopp, Gregory A.; Sullivan, Paul

doi:10.1007/s00348-011-1219-7

Cited by 27 publications

(16 citation statements)

References 46 publications

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“…For example, the uncertainty of PLIF image processing algorithms was discussed, among others, by Walker (1987), Ferrier et al (1993), Karasso and Mungal (1997), Cowen et al (2001), Melton and Lipp (2003), Webster et al (2003), Shan et al (2004), Crimaldi (2008), and Sarathi et al (2012). However, the requirements of uncertainty analysis in different studies have been quite diverse, depending on the objective and scope of the experiment, the flow conditions, the experimental configuration and other factors.…”

mentioning

confidence: 99%

On the accuracy of PLIF measurements in slender plumes

Vanderwel

Tavoularis

2014

Exp Fluids

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The purpose of this article is to assess the measurement uncertainty of the planar laser-induced fluorescence (PLIF) method and, as much as possible, to devise corrections for predictable biases. More specifically, we considered the measurement of concentration maps in cross-sections parallel to and normal to the axis of a slender plume containing Rhodamine 6G as a passive scalar tracer and transported by a turbulent shear flow. In addition to previously examined sources of error related to PLIF, we also investigated several unexplored ones. First, we demonstrated that errors would arise if the laser sheet thickness were comparable to or larger than the thickness of the instantaneous plume. We then investigated the effect of secondary fluorescence, which was attributed to absorption and re-emission of primary fluorescence by dye both within and outside the laser sheet. We found that, if uncorrected, this effect would contaminate the calibration as well as the instantaneous concentration measurements of the plume, and proposed methods for the correction of these errors and for identifying the instantaneous boundaries of the in-sheet dye regions.

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confidence: 99%

On the accuracy of PLIF measurements in slender plumes

Vanderwel

Tavoularis

2014

Exp Fluids

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“…The reflections within the bulk phase are one reason for non‐uniform bulk grey value, the inhomogeneity of the laser light sheet is another one. The latter can be overcome by using normalization and calibration techniques . This is discussed in Sect.…”

Section: Lif At Curved Gas‐liquid Interfacesmentioning

confidence: 99%

Laser‐Induced Fluorescence in Multiphase Systems

et al. 2018

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Nowadays, multiphase flows occur in many different applications in everyday life or industrial context. Consequently, the understanding of transport phenomenolgy between the participating phases is a crucial task of recent and prospective research. When it comes to the optimization of absorption and chemical reaction tasks in process industry, in‐depth knowledge concerning mass transfer is required. The laser‐induced fluorescence (LIF) imaging is therefore a promising optical measurement technique to characterize concentration fields with high spatial and temporal resolution. This review gives an overview of the different fields of research within which LIF measurements are carried out, with focus on gas‐liquid systems. Chances and obstacles of recently publicated results as well as experiences of LIF methods regarding multiphase flows are presented and discussed.

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“…Gendron et al 2008;Vanderwel and Tavoularis 2014). The emission and absorption spectra, as presented by Sarathi et al (2012), are plotted in Fig. 3.…”

Section: The Dyementioning

confidence: 99%

“…a photobleaching effect Crimaldi 1997), introduce novel calibration approaches (e.g. Sarathi et al 2012) or simply report LIF measurement results. A review by Crimaldi (2008) summarizes most of the knowledge and experience gained so far.…”

Section: Introductionmentioning

confidence: 99%

“…This might be seen as quite restrictive, especially in turbulent flows where local high concentrations may occur, despite the relatively low mean value, that would lead to a significant illumination extinction. Therefore, some more conservative approaches account for a laser light absorption as it passes through the solution which brings non-locality into the relation [these techniques are represented by Ferrier et al (1993) or Sarathi et al (2012)]. …”

Section: Introductionmentioning

confidence: 99%

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