The liquid or gas in the simulation can be either internal, like water flowing through a piping system, or external, like air flowing over the external surfaces of a vehicle. The geometry can be native to the CAD software or imported. Prior to entering the CFD simulation environment, create the 3D CAD part or assembly to be analyzed. To further facilitate understanding of the behavior and to accelerate calculations, the results can be displayed at a specific cut plane.ĬFD can be executed by performing the following steps: When displayed in the fluid, the results can be depicted as color contours, particles, a direction field, or streamlines. These results can be calculated and displayed (1) at specific locations in a model (2) for the maximum or minimum value on a surface or a component or (3) throughout the fluid volume. Vortices, which provide an indication of the spinning motion of the fluid at the points throughout the domain.Velocity, the speed and direction of particles inside or outside the model.Capabilitiesīy using CFD software, you can calculate and display fluid quantities such as: In product development, CFD enables us to design products and systems that meet requirements for fluid flow and heat transfer. CFD has many uses beyond product development and aerodynamics, such as weather forecasting and visual effects. Like finite element analysis (FEA), the fluid volume is broken up into smaller elements that are composed into a matrix. It is a multiphysics solution since it involves the interaction of multiple phenomena including fluid dynamics, thermodynamics, and conservation of momentum. Computational fluid dynamics is simulation and analysis performed in computer-aided design ( CAD) software to calculate the flow of liquids or gases in or around a product.
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