Abstract
Ultimately, the goal of Computational Fluid Dynamics (CFD) is to provide a numerical description of fluid flow behaviour. This is achieved through solving the governing equations that are mathematical statements of the physical conservation laws:
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conservation of mass;
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balance of momentum (Newton’s second law, the rate of change of momentum equals the sum of forces acting on the fluid) and;
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conservation of energy (first law of thermodynamics, the rate of change of energy equals the sum of rate of heat addition to, and the rate of work done on, the fluid).
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Notes
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It should be noted that the term LRN does not refer to the bulk flow Reynolds number, but rather the turbulent Reynolds number, which is low in the viscous sublayer (see Sect. 5.3.5 for viscous sublayer description). In fact the LRN models can be applied for a fluid flow that has a high flow Reynolds number.
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Tu, J., Inthavong, K., Ahmadi, G. (2013). Fundamentals of Fluid Dynamics. In: Computational Fluid and Particle Dynamics in the Human Respiratory System. Biological and Medical Physics, Biomedical Engineering. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4488-2_5
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DOI: https://doi.org/10.1007/978-94-007-4488-2_5
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