مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

264
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

0
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

Information Journal Paper

Title

Experimental Investigation of the Performance of Triangular Vanes on Bed Topography in Straight Rivers.

Pages

  91-102

Abstract

 Spur dikes are one of the structures used for protection of River banks from erosion and rivers organization. They are usually rectangular and perpendicular to the flow. Unfortunately, the Scour development in the tip of those can lead damage to the structure. Furthermore, sedimentation between the Spur dikes as well as increasing the flow velocity in the middle of the channel due to the large obstruction, are among the factors that create problems for aquatic life of the river. These problems are minimal in the Triangular vanes. The main purpose of this paper is to evaluate the performance of the Triangular vanes on bed topography changes in the different flow conditions. For this reason, some tests were carried out at a straight flume for different flow conditions (five Froude numbers of 0. 18, 0. 20, 0. 22, 0. 24 and 0. 26) by installing series of Triangular vanes with space of 4Le (Le is the effective length of structure) at the angle of 30 degrees to the upstream bank. At the end of each test the bed topography was measured by laser distance measurer. The results showed that, the geometric dimension of the Scour hole for the rectangular Spur dikes was larger than that for the Triangular vanes. On average, the length and depth of Scour hole for the rectangular Spur dikes were 1. 3 and 1. 5 times higher in comparison to those for Triangular vanes, respectively. In addition, the position of the maximum Scour depth for the Triangular vanes was about 40% farther from the bank than that case of rectangular Spur dikes that was an advantage for the Triangular vanes.

Cites

  • No record.

    • References

  • No record.

    • Cite

    APA: Copy

    Najafi Birgani, N., Shafai Bejestan, N., & BAHRAMI YARAHMADI, M.. (2020). Experimental Investigation of the Performance of Triangular Vanes on Bed Topography in Straight Rivers.. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), 30(2 ), 91-102. SID. https://sid.ir/paper/411218/en

    Vancouver: Copy

    Najafi Birgani N., Shafai Bejestan N., BAHRAMI YARAHMADI M.. Experimental Investigation of the Performance of Triangular Vanes on Bed Topography in Straight Rivers.. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE)[Internet]. 2020;30(2 ):91-102. Available from: https://sid.ir/paper/411218/en

    IEEE: Copy

    N. Najafi Birgani, N. Shafai Bejestan, and M. BAHRAMI YARAHMADI, “Experimental Investigation of the Performance of Triangular Vanes on Bed Topography in Straight Rivers.,” WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), vol. 30, no. 2 , pp. 91–102, 2020, [Online]. Available: https://sid.ir/paper/411218/en

    Related Journal Papers

  • No record.

    • Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops






    Move to top
    telegram sharing button
    whatsapp sharing button
    linkedin sharing button
    twitter sharing button
    email sharing button
    email sharing button
    email sharing button
    sharethis sharing button