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ORIGINAL RESEARCH article

Front. Environ. Eng.
Sec. Environmental Impact Assessment
Volume 3 - 2024 | doi: 10.3389/fenve.2024.1446683

Hydraulic Erosion Patterns Downstream of Corrugated Aprons: Investigating Free and Submerged Jet Effects

Provisionally accepted
Mohd Aamir Mumtaz Mohd Aamir Mumtaz 1*Mohamed H. Elgamal Mohamed H. Elgamal 1Mohamed I. Farouk Mohamed I. Farouk 1Md Irfanul Haque Siddiqui Md Irfanul Haque Siddiqui 2
  • 1 Imam Muhammad ibn Saud Islamic University, Riyadh, Saudi Arabia
  • 2 King Saud University, Riyadh, Riyadh, Saudi Arabia

The final, formatted version of the article will be published soon.

    The experimental evaluation of the performance of a corrugated apron under free flow subcritical and submerged conditions was conducted, with a focus on scour patterns over the apron. Comparative analysis with a smooth rigid apron revealed an increase in scour depth upon the application of the corrugated apron under free and submerged jet flow conditions. The implementation of a corrugated apron resulted in a considerable reduction in scour depth and length compared to a smooth rigid apron. The maximum reduction in scour depth and length amounted to 79% and 83%, respectively, while the minimum reduction observed was 13% in scour depth and 11% in scour length. Additionally, investigations into velocity and turbulence characteristics over both smooth and corrugated aprons were conducted. It was observed that the rate of turbulence intensity increase within the scour hole due to the presence of a smooth apron surpassed that of the corrugated apron. Scour downstream of the corrugated apron exhibited distinct delineations, including regions of jet diffusion, transition, acceleration, and a recirculating zone near the bed of the scour hole.

    Keywords: Apron, Froude number, Scour, jets, hydraulic jump, Turbulence

    Received: 10 Jun 2024; Accepted: 26 Jul 2024.

    Copyright: © 2024 Mumtaz, Elgamal, Farouk and Siddiqui. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Mohd Aamir Mumtaz, Imam Muhammad ibn Saud Islamic University, Riyadh, Saudi Arabia

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