Please use this identifier to cite or link to this item: http://ir.futminna.edu.ng:8080/jspui/handle/123456789/7949
Title: Modeling Of Vegetated Open Channel Flow: A Review
Authors: Abdullahi, Nuhu
Busari, Afis
Keywords: Environmental hydraulics
Open channel flows
Vegetation
Issue Date: 14-Mar-2021
Publisher: ICONIC RESEARCH AND ENGINEERING JOURNALS
Abstract: The presence of vegetation growth in waterways such as lakes, rivers and canals e. t. c. play an important role from ecological point of view as it can be used to improve water quality and reduce soil erosion by altering the flow magnitude. To understand the hydrodynamics of vegetation, numerous types of synthetic materials were used to simulate vegetation roughness in the past. Through this, numerous model equations were developed to predict the discharge, but the models were found to overestimate the discharge when applied to a natural vegetated channel or constructed one such as flumes. This paper reviews some researches performed on vegetated open channels, which comprises the effects of vegetation characteristics on flow, modeling of vegetative roughness and derivation of vegetal drag coefficient due to submerged and emergent vegetation. Studies based on laboratory, field works, mathematical/analytical and numerical modeling, have been reviewed based on previous approaches by different researchers. The paper concludes with recommendations for future work in order to improve the existing models for predicting vegetated roughness through the use of natural vegetation in combination of both the interactions of submerged, emergent and floating types of vegetation which is less investigated by researchers. For this reason, it remains questionable to precisely determine the optimum value of vegetative roughness for the purpose of vegetated channel design.
Description: IRE Journal
URI: http://repository.futminna.edu.ng:8080/jspui/handle/123456789/7949
ISSN: 2456-8880
Appears in Collections:Civil Engineering

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