Abstract
The main goal of presented work was to develop parametric model of a ventilator for CFD and structural analysis. The whole model was designed and scripted in freely available open source programmes in particular in OpenFOAM and Elmer. The main script, which runs or generates other scripts and further control the course of simulation, was written in bash scripting language in Linux environment. Further, the scripts needed for a mesh generation and running of a simulation were prepared using m4 word pre-processor. The use of m4 allowed comfortable set up of the higher amount of scripts. Consequently, the mesh was generated for fluid and solid part of the ventilator within OpenFOAM. Although OpenFOAM offers also a few tools for structural analysis, the mesh of solid parts was transferred into Elmer mesh format with the aim to perform structural analysis in this software. This submitted paper deals namely with part concerning fluid flow through parametrized geometry with different initial conditions. As an example, two simulations were conducted for the same geometric parameters and mesh but for different angular velocity of ventilator rotation.
Highlights
The work presented in this paper was predominantly focused on a design and simulation of ventilators
OpenFOAM offers a few tools for structural analysis, the mesh of solid parts was transferred into Elmer mesh format with the aim to perform structural analysis in this software
The part of the work included in the text bellow was mainly oriented on the part concerning the properties of fluid flow through the ventilator geometry
Summary
The work presented in this paper was predominantly focused on a design and simulation of ventilators. The main aim was to develop the tool as universal as possible to design shape and examine the working effectiveness of ventilators at the scale range starting at centimetres scale up to scale of metres. The part of the work included in the text bellow was mainly oriented on the part concerning the properties of fluid flow through the ventilator geometry. The mesh preparation of the solid parts was considered and prepared for structural analysis. All of the results presented here were achieved with freely available software. The mesh generation and simulations of fluid flow properties was conducted within OpenFOAM. The mesh of solid part was prepared for structural analysis in Elmer
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