This contribution reports on an ongoing study of incompressible viscous fluid flow in two dimensional branched channels. A new finite difference solver was developed using a simple implementation of an immersed boundary method to represent the channel geometry. Numerical solutions obtained using this new solver are compared with outputs of an older finite volume code working on classical wall tted structured multiblock grid. Besides of the comparative evaluation of obtained solution, the aim is to verify whether the immersed boundary method is suitable (accurate and e cient enough) for simulations of flow in channels with complicated geometry where the the grid generation might be challenging.
This contribution presents some of the first results of a newly developed simple numerical solver aimed to study the flow properties and behavior in branching channel. The 2D incompressible fluid flow is simulated using Navier Stokes equations, solved by a finite-difference scheme on a Cartesian grid. The channel geometry is represented by a simple immersed boundary method implementation. A series of essential tests was performed for the selected geometry to evaluate the overall behaviour of the model and its response to different boundary conditions, geometry and grid settings.
This work deals with the flow of incompressible viscous fluids in a two-dimensional branching channel. Using the immersed boundary method, a new finite difference solver was developed to interpret the channel geometry. The numerical results obtained by this new solver are compared with the numerical simulations of the older finite volume method code and with the results obtained with OpenFOAM. The aim of this work is to verify whether the immersed boundary method is suitable for fluid flow in channels with more complex geometries with difficult grid generation.
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