Flow circulation dynamics in spur dike field enhanced by roughness elements

IF 6 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY Ain Shams Engineering Journal Pub Date : 2025-02-07 DOI:10.1016/j.asej.2025.103297

Muhammad Aqeel , Sohail Iqbal , Maaz Khan , Ghufran Ahmed Pasha , Usman Ghani , Afzal Ahmed , Xianrui Zhao

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Abstract

Spur dike field (SDF) have recently gained attention as habitats for aquatic life. However, limited knowledge exists on how different configurations of roughness elements (RE) interact with recirculating flow in these environments. This study aims to investigate the influence of various RE arrangements (single, double, and triple layers) on hydrodynamics within SDF and at the nose of downstream spur dike, focusing on flow patterns and turbulence reduction. Numerical simulations using the CFD code FLUENT (ANSYS) were conducted to analyze flow intensity, turbulent kinetic energy, and circulation patterns. The findings show that REs significantly alters circulation dynamics, transforming a concentrated recirculation eye into multiple recirculation zones. The triple-layer configuration yielded the greatest reduction in velocity and turbulence up to 39% and 46% by reducing momentum exchange between SDF and the mainstream. This novel investigation of RE configurations provides insights into optimizing spur dike designs for improved hydraulic performance and ecological benefits.

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来源期刊

Ain Shams Engineering Journal Engineering-General Engineering

CiteScore

10.80

自引率

13.30%

发文量

441

审稿时长

49 weeks

期刊介绍： in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.