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Experimental Study on the Effect of an Expanding Conjunction Between a Spilling Basin and the Downstream Channel on the Height After Jump

  • Research Article - Civil Engineering
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Abstract

In order to study the impact of an expanding conjunction (with a divergent conjunction or with an abruptly expanding conjunction) between a stilling basin and the downstream channel on the height after jump, systematic experimental studies were carried out with different divergent angles and different abrupt expansion ratios at the conjunction. The link between the conjunction type and the height after jump is explored. The height after jump without an expanding conjunction is larger than that with a divergent conjunction, while the height after a jump without an expanding conjunction is larger than that with the abrupt expanding conjunction. Furthermore, with a larger divergent angle or larger expansion ratio, the impact on the height after jump becomes more variable. It is proposed that the existing formula which is used to calculate the height after jump in a straight channel is not appropriate for a jump with an expanding conjunction. This paper proposes a corrected formula to calculate the height after jump with an expanding conjunction, which is suggested for application in the engineering design process.

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Authors and Affiliations

  1. College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Taian, 271000, China

    Jing Zhang, Qinghua Zhang, Tiantian Wang, Shuning Li & Yanfang Diao

  2. Water Supply Bureau, Yellow River Shandong Bureau, Liaocheng, 252200, China

    Ming Cheng

  3. Department of Physical Sciences, Visiting Fellow Open University, Walton Hall, Milton Keynes, MK7 6AA, UK

    John Baruch

Authors
  1. Jing Zhang
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  2. Qinghua Zhang
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  3. Tiantian Wang
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  4. Shuning Li
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  5. Yanfang Diao
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  6. Ming Cheng
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  7. John Baruch
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Corresponding author

Correspondence to Qinghua Zhang.

Additional information

Qinghua Zhang, Tiantian Wang, Shuning Li, Yanfang Diao and Ming Cheng are the co-first-authors for the production of this paper.

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Zhang, J., Zhang, Q., Wang, T. et al. Experimental Study on the Effect of an Expanding Conjunction Between a Spilling Basin and the Downstream Channel on the Height After Jump. Arab J Sci Eng 42, 4069–4078 (2017). https://doi.org/10.1007/s13369-017-2568-1

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  • DOI: https://doi.org/10.1007/s13369-017-2568-1

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