Application of particle image velocimetry (PIV) to measure the displacement of sandy soil in laboratory

Particle image velocimetry (PIV) has been heavily used to measure the displacement and flow velocity in fluid mechanics. However, applications of this method to determining soil displacement in geotechnical laboratory tests are rare. This paper aims to verify the applicability of this method in determining the displacement of sandy soil under different saturation conditions and soil grain sizes. The results showed that this method could effectively determine soil displacement with an accuracy of 0.13 mm. Furthermore, the degree of saturation of soil did not influence the PIV results whereas the homogeneity of soil, as indicated by grain size distribution, reduced the precision of the PIV method.

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Contactless Particle Image Velocimetry (PIV) Method of Screening Drugs Using Human iPSC-derived Cardiomyocytes

Journal of Molecular and Cellular Cardiology ◽

10.1016/j.yjmcc.2017.07.046 ◽

2017 ◽

Vol 112 ◽

pp. 145 ◽

Cited By ~ 1

Author(s):

Sheeja Rajasingh ◽

Andras Czirok ◽

Dona Greta Isai ◽

Saheli Samanta ◽

Zhigang Zhou ◽

...

Keyword(s):

Particle Image Velocimetry ◽

Particle Image ◽

Piv Method ◽

Image Velocimetry ◽

Human Ipsc

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Laboratory Measurement of Displacement on Shallow Foundation in Uniform Sand using Particle Image Velocimetry Technique

Jurnal Teknologi ◽

10.11113/jt.v61.1768 ◽

2013 ◽

Vol 61 (3) ◽

Author(s):

Siti Noor Linda Taib ◽

Lau See Hung ◽

Prabir Kumar Kolay

Keyword(s):

Particle Image Velocimetry ◽

Particle Image ◽

Shallow Foundation ◽

Particle Image Velocimetry Technique ◽

Validation Test ◽

Soil Displacement ◽

Image Velocimetry ◽

Measured Displacement ◽

Structural Loading ◽

Foundation Plate

Particle Image Velocimetry (PIV) is one of the non–intrusive techniques recently being utilized for measuring soil displacement in geotechnical engineering. The work discussed in this paper focuses on the application of an image processing tool known as MatPIV, a freeware readily available to the general users. The test programmes involved measurement and visualization of the behavior of displaced soil under various type of loadings and sizes of the foundation plate. Prior to testing, validation test was performed to study on the validity of measurements produced by MatPIV by comparing its measurements with the actual. Boundary analysis was also performed to justify on the configuration chosen for the model box used in both validation and experimental set-ups. In addition, a set of 70 displacement data was also studied in the validation test and a further statistical analysis on the data showed an acceptable accuracy of 98.8% for the MatPIV analysis when compared to the actual measured displacement. Hence, further test programmes which consisted of various soil–structure interaction conditions were performed. This comprehensive analysis showed that the diameter of loading rods and the sizes of foundation plate do affect the behavior of soil displacement under centric structural loading and was shown successfully via MatPIV.

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Possible Limitations of the Particle Image Velocimetry Method in the Presence of Strong Electric Fields

Processes ◽

10.3390/pr9101790 ◽

2021 ◽

Vol 9 (10) ◽

pp. 1790

Author(s):

Michal Malík ◽

Jiří Primas ◽

Petr Schovanec ◽

Josef Novák ◽

Pavel Pokorný ◽

...

Keyword(s):

Particle Image Velocimetry ◽

Electric Fields ◽

Particle Image ◽

Negative Influence ◽

Piv Method ◽

Tracer Particles ◽

Piv Measurement ◽

Image Velocimetry ◽

Measurement Results ◽

Strong Electric Fields

While examining the airflow generated between the asymmetrical electrodes connected to high voltage, the authors investigated the possible limitations of the particle image velocimetry (PIV) method in the presence of strong electric fields. The tracer particles used in the PIV method in these conditions are affected by electromagnetic forces; therefore, it is necessary to determine whether these forces have any non-negligible negative influence on the measurement results. For this purpose, the authors theoretically analyzed all the possible forces and measured the generated airflow using PIV and constant temperature anemometry methods. The experimental and theoretical results clearly show the viability of the PIV measurement method even in these very specific conditions.

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