

Computational Fluid Dynamics 



Computational fluid dynamics (CFD) is a branch of the field of fluid mechanics. It addresses the flow of liquid and gases under various conditions. Included among these conditions are the following:
CFD uses numerical methods and algorithms to solve fluid flow problems. Problem solving is performed in accordance with the following steps:
The interaction between different areas of fluid flow, or the interaction between a fluid and a surface can be predicted using the NavierStokes equations. CFD software uses boundary conditions entered by the user to calculate solutions to this set of equations over a series of predefined elements into which the model being analyzed has been subdivided. Similarly to the finite element method for stress analysis, computational fluid dynamics results in a solution only as accurate as the number of elements over which calculations have been performed. Hence, the more elements, the more reliable the results are likely to be. Complex simulations can easily be computed with highspeed computers, resulting in accurate representations of fluid flow in two or three dimensions. Furthermore, certain simplifications can be made to the NavierStokes equations in order to facilitate execution of the simulation. Computational fluid dynamics techniques are quite useful in the product design process, since fluid interactions could be predicted with a high degree of accuracy, without going through the task of prototype manufacturing and wind tunnel testing.




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