Recently there has been great interest by design engineers/ CFD analysts/ researchers worldwide to develop greater insights in the design and performance analysis of Turbiomachinery as they form an important component in major industrial applications. The blog aims to provide an overview of Turbomachinery and the essential CAD cleanup steps while meshing turbomachines for CFD analysis with the help of a software video demonstration on a commercial tool.

Having already explained the background & evolution of Computational Fluid Dynamics (CFD) in the earlier blog Introduction to CFD, let us now try to understand the CFD simulation process with a few examples."CFD is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions, and related phenomena by solving the mathematical equations which govern these processes using numerical methods"

Once the preprocessing is done, means once we have good mesh, we can import the mesh in specific solver are solve the desired governing equations. This step is called as solution step.

Different boundaries of regions require different boundary conditions. Applying boundary conditions in pre-processing tool is the process of putting appropriate tags (labels) on specific boundaries

In simplest form, the grid generation can be defined as: “The process of dividing the given physical domain into smaller sub domains (called as cells or elements)”. There are various methods of creating the grid or mesh.

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