Computational Fluid Dynamic Analysis of Flow around Mangrove roots.

Abstract

The objective of this paper is to study the flow patterns around mangrove roots to understand its significance in coastal risk reduction. A computational model of two-dimensional Pneumatophores mangrove roots is developed, and flow is simulated using ANSYS software with a predefined mathematical model and boundary conditions. Computational fluid dynamic analysis of a two-dimensional, viscous, incompressible, turbulent flow under steady and unsteady boundary condition is performed using the Finite volume method. Detailed velocity profiles, residual plots, pressure distributions, vectors of the velocity magnitude and pressure and velocity at different positions around the mangrove roots are presented to visualize the importance of mangroves in reducing the wave velocity. The simulation outcome confirms that the mangrove roots of mangrove species can reduce the initial velocity of water flow. The flow patterns and flow structures around the root in the mangrove forest establishes precious data in increasing the effectiveness of current breakwater model.

Wind Flow Simulation around Rhizophora Mangrove Roots Using Computational Fluid Dynamics

“…Another study performed the water flow around mangrove species with inlet velocity as 6 m/s and analyzed the flow pattern around these roots [26]. Another CFD study performed to investigate the 2D water flow around the roots using different turbulence models and identify that the roots can reduce the water velocity [27]. CFD has been used to analyze wind flow (compressible and incompressible) around Avicenia mangrove roots to analyze the flow patterns around the roots [28].…”