https://doi.org/10.4081/jae.2022.1339

Portable central baffle flume

Vol. 53 No. 2 (2022)
    Published:29 June 2022
    Triangular central baffle flume, stage-discharge formula, Buckingham’s theorem, incomplete self-similarity, submergence threshold.
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    Authors

    Mohammad Bijankhan
    Department of Water Engineering, Imam Khomeini International University, Qazvin, Iran, Islamic Republic of.
    Ali Teymourkhani
    Department of Water Engineering, Imam Khomeini International University, Qazvin, Iran, Islamic Republic of.
    Vito Ferro
    vito.ferro@unipa.it
    Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy.

    This paper investigated the hydraulic characteristics of the triangular central baffle (TCB) flume. Laboratory tests were carried out to determine the flume dimensions. The field applicability of the proposed portable device was examined by on-farm installation. According to the laboratory tests, when the contraction ratio, r, was less than 0.39, the flow capacity was not affected by the ratio between the flume’s floor height and the throat width. The laboratory analysis also showed that there was no significant effect of installing an entrance ramp on the stage-discharge relationship for r<0.39, while the entrance ramp increased the discharge capacity for r>0.39. The stage-discharge curve obtained based on the laboratory tests was verified using field data. The results revealed that the proposed portable flume could be used accurately to determine the flow through an unlined ditch. Practical suggestions were proposed to determine the distinguishing condition curve.

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    How to Cite

    Bijankhan, M., Teymourkhani, A. and Ferro, V. (2022) “Portable central baffle flume”, Journal of Agricultural Engineering, 53(2). doi: 10.4081/jae.2022.1339.
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