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Flow Behavior over Mixed-Height Vegetation Patches under Submerged Conditions

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Abstract:

The resistance created by vegetation against flow in open channels should be taken into account in projects focused on watercourse management and river restoration. Staggered patches of vegetation in an open channel significantly influence flow structure and river geomorphology. This study numerically examines flow characteristics through longitudinal discontinuous vegetation patches using three-dimensional software FLUENT, with a Reynolds stress turbulent model applied. ANSYS FLUENT Computational Fluid Dynamics techniques were utilized to analyze variations in mean stream velocity within the model domain. This study presents different distributions and profiles of mean stream velocities. It was observed that velocity decreases in the vegetation zones due to resistance. To monitor their effects on flow velocity, experimental vegetation patches should be installed along riverbanks, wetlands, or in stormwater channels.

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Periodical:

Construction Technologies and Architecture (Volume 23)

Pages:

157-163

DOI:

https://doi.org/10.4028/p-Lpem1o

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Online since:

May 2026

Authors:

Saad Anwar*, Naveed Anjum, Ahmad Ali, Imtiaz Ahmed, Saeed Shah

Keywords:

ANSYS Fluent, Open Channel, Reynolds Stress Turbulent Model, Vegetation, Velocity

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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