Also, trying to simplify or remove unnecessary features from an already defined solid can be tricky or time-consuming. Starting with a preexisting geometry can save some time and effort, however, other challenges may arise such as how will the fluid region be extracted from a solid part. Moreover, boundary conditions are also defined at the edges of the domain.ĭuring this stage, users may choose between two options, either using a preexisting computer-aided design (CAD) model or create one from scratch in ANSYS DesignModeler. In the geometry step, one is affecting the mathematical model since it defines the domain in which the governing equations are defined. Silva, João Cardoso, in Computational Fluid Dynamics Applied to Waste-to-Energy Processes, 2020 3.1 Creating a solid modelĪfter completing the preanalysis, creating geometry is the first major step in the problem specification.
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