Computational Fluid Dynamics

Computational Fluid Dynamics

ABSTRACT:

Computational Fluid Dynamics (CFD) is the analysis of systems involving fluid flow, heat transfer and associated phenomena like combustion processes by means of computer-based simulation. Even though actual experimentation reveals accurate data, the cost and intricacies involved in complex situations can be effectively overridden by shifting towards numerical methods. This has paved way for the development of CFD which provides detailed performance assessment during device design. However, complex flow simulations are challenging and error-prone and it takes a lot of engineering expertise to obtain validated solutions and this has been the stumbling block for development of CFD.

This paper illustrates the control volume method and intends to provide theoretical knowledge of control volume method and its use in CFD codes, implementation of boundary conditions, pressure and velocity computations procedures using SIMPLE algorithm.

A case study of analysis of CFD simulation of a cross-matrix heat exchanger with the help of velocity, temperature and convective heat flux plots at various grid levels has been included in the paper. Besides this, various fields of application of CFD and its future has been presented.

CFD is a new “Third Dimension” in fluid dynamics and can be an important tool in hands of modern day designer in optimizing the design, which can be used in number of ways in various applications with adequate theoretical knowledge base.

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